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Drivetrain & Sports Gearbox Parts


Optimize Your Drivetrain: More Power, More Pleasure

At Optimiz Access, we offer custom-tailored solutions for a more efficient, direct, and responsive drivetrain. Whether you are aiming to put power down on the track or achieve sharper gear selection in daily driving, upgrading your transmission system unlocks the full potential of your sports vehicle.

Key benefits of an optimized drivetrain: faster and more precise gear shifts for dynamic driving, improved torque distribution for maximum traction, enhanced component reliability, and custom setups suited to all driving styles.

Essential Components for Gearboxes and Differentials

Our lineup brings together all the essential precision parts needed to maximize power transfer to the road:

  • Clutches & Flywheels – Reinforced clutch kits, single-mass race flywheels, and high-friction materials built to handle high torque output.
  • LSDs & Differentials – Limited-slip differentials designed to eliminate wheelspin and maximize exit traction.
  • Shifters & Short Shifters – Precision short-throw shifters delivering crisp, rapid gear engagements.
  • Final Drive Gears – Shorter ring and pinion gear sets providing explosive acceleration and mid-range response.
  • Gearbox Oils & Bearings – High-performance synthetic gear oils and heavy-duty bearings engineered to protect gears under load.

Benchmark Brands and Trusted Partners

We work with the most respected motorsport manufacturers in the industry: CAE Racing, Sadev, Quaife, 4Tech Shifter, Helix, SACHS Performance, and TTV Racing. We also stock OEM factory parts to cover all your routine maintenance, servicing, and drivetrain overhauls.

Why Choose Optimiz Access for Your Drivetrain?

Since 2010, Optimiz Access has specialized in the custom upgrading and maintenance of sports and premium vehicles. By relying on us, you gain expert technical advice, high-precision components, and professional installation in our workshop in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin. We ensure strict quality control along with fast worldwide shipping.

Gear Up and Boost Your Sports Car's Traction Today

Don't let your engine's power go to waste. Trust the expertise of Optimiz Access, select your transmission hardware today, and take advantage of our fast dispatch to get your vehicle build underway.

Active filters

  • Categories: Drive Shafts
En Stock
€73.82 Price
En Stock
€73.82 Price
Tripode cardan Clio Gr N
      The Tripod Driveshaft Clio Group N , references A-7711129526 and  is a reinforced tripod driveshaft component designed for Renault Clio Group N competition applications. Developed for demanding motorsport use, this component is intended for vehicles subjected to increased drivetrain loads during rally and track use. A...
      €73.82Price
      Tripode cardan Clio Gr N
          The Tripod Driveshaft Clio Group N , references A-7711129526 and  is a reinforced tripod driveshaft component designed for Renault Clio Group N competition applications. Developed for demanding motorsport use, this component is intended for vehicles subjected to increased drivetrain loads during rally and track use. A...
          €73.82Price
          En Stock
          €192.10 Price
          En Stock
          €192.10 Price
          Left Drive Shaft (Transmission) Renault Megane 2 RSLeft Drive Shaft (Transmission) Renault Megane 2 RS
              Do not let a failing transmission ground your sports car. Since the original manufacturer part is now discontinued, we have selected this high-quality re-manufactured left drive shaft (transmission) for Renault Megane 2 RS . Engineered to handle the torque of the F4RT engine, this brand new drive shaft perfectly replaces your worn component, eliminating...
              €192.10Price
              Left Drive Shaft (Transmission) Renault Megane 2 RSLeft Drive Shaft (Transmission) Renault Megane 2 RS
                  Do not let a failing transmission ground your sports car. Since the original manufacturer part is now discontinued, we have selected this high-quality re-manufactured left drive shaft (transmission) for Renault Megane 2 RS . Engineered to handle the torque of the F4RT engine, this brand new drive shaft perfectly replaces your worn component, eliminating...
                  €192.10Price
                  En Stock
                  €450.43 Price
                  En Stock
                  €450.43 Price
                  SADEV Left Driveshaft F1908352 - ST75 Clio 3 CupSADEV Left Driveshaft F1908352 - ST75 Clio 3 Cup
                      The SADEV Left Driveshaft (references F1908352 / 7711160447 ) is the main element of the left driveshaft, ensuring the link between the Lobro joint (gearbox side) and the wheel hub carrier . Designed to withstand intense torque efforts in motorsport , it is homologated for the Renault...
                      €450.43Price
                      SADEV Left Driveshaft F1908352 - ST75 Clio 3 CupSADEV Left Driveshaft F1908352 - ST75 Clio 3 Cup
                          The SADEV Left Driveshaft (references F1908352 / 7711160447 ) is the main element of the left driveshaft, ensuring the link between the Lobro joint (gearbox side) and the wheel hub carrier . Designed to withstand intense torque efforts in motorsport , it is homologated for the Renault...
                          €450.43Price
                          Clio Group N BJ100 Bell (7711167493) - 23C Hub / 35T JointClio Group N BJ100 Bell (7711167493) - 23C Hub / 35T Joint
                              Optimize your racing transmission with the BJ100 Transmission Bell (23C Hub / 35 Spline Joint) specifically designed for the Clio Group N . This technical part, under reference 7711167493 , is the central element for ensuring power delivery to...
                              €324.79Price
                              Clio Group N BJ100 Bell (7711167493) - 23C Hub / 35T JointClio Group N BJ100 Bell (7711167493) - 23C Hub / 35T Joint
                                  Optimize your racing transmission with the BJ100 Transmission Bell (23C Hub / 35 Spline Joint) specifically designed for the Clio Group N . This technical part, under reference 7711167493 , is the central element for ensuring power delivery to...
                                  €324.79Price
                                  En Stock
                                  €86.59 Price
                                  En Stock
                                  €86.59 Price
                                  Wheel CV Boot Renault Clio 3 X85 Cup (Genuine RS)Wheel CV Boot Renault Clio 3 X85 Cup (Genuine RS)
                                      Genuine Renault Sport Clio 3 X85 Cup Wheel Side CV Boot (Driveshaft Boot) Don't let dust and debris damage your transmission! This genuine Renault Sport wheel side CV boot (ref. 7701473176) is essential for protecting the joint of your driveshaft on your Renault Clio 3 X85 Cup . Preserve the longevity of...
                                      €86.59Price
                                      Wheel CV Boot Renault Clio 3 X85 Cup (Genuine RS)Wheel CV Boot Renault Clio 3 X85 Cup (Genuine RS)
                                          Genuine Renault Sport Clio 3 X85 Cup Wheel Side CV Boot (Driveshaft Boot) Don't let dust and debris damage your transmission! This genuine Renault Sport wheel side CV boot (ref. 7701473176) is essential for protecting the joint of your driveshaft on your Renault Clio 3 X85 Cup . Preserve the longevity of...
                                          €86.59Price
                                          En Stock
                                          €2.50 Price
                                          En Stock
                                          €2.50 Price
                                          Collier (coté bol) de cardan coté roue Clio 2 RSCollier (coté bol) de cardan coté roue Clio 2 RS
                                              Collier (coté bol) de cardan coté roue Clio 2 RS Produit d'origine
                                              €2.50Price
                                              Collier (coté bol) de cardan coté roue Clio 2 RSCollier (coté bol) de cardan coté roue Clio 2 RS
                                                  Collier (coté bol) de cardan coté roue Clio 2 RS Produit d'origine
                                                  €2.50Price
                                                  Dispo selon configuration
                                                  €1,262.70 €1,578.37 Regular price -20% off Price
                                                  Dispo selon configuration
                                                  €1,262.70 €1,578.37 Regular price -20% off Price
                                                  Transmission droite Twingo R2Transmission droite Twingo R2
                                                    • Pack
                                                    Transmission droite Twingo R2
                                                    €1,262.70€1,578.37Regular price-20% offPrice
                                                    Transmission droite Twingo R2Transmission droite Twingo R2
                                                      • Pack
                                                      Transmission droite Twingo R2
                                                      €1,262.70€1,578.37Regular price-20% offPrice
                                                      Dispo selon configuration
                                                      €1,316.82 €1,755.76 Regular price -25% off Price
                                                      Dispo selon configuration
                                                      €1,316.82 €1,755.76 Regular price -25% off Price
                                                      Transmission gauche Twingo R2Transmission gauche Twingo R2
                                                        • Pack
                                                        Transmission gauche Twingo R2
                                                        €1,316.82€1,755.76Regular price-25% offPrice
                                                        Transmission gauche Twingo R2Transmission gauche Twingo R2
                                                          • Pack
                                                          Transmission gauche Twingo R2
                                                          €1,316.82€1,755.76Regular price-25% offPrice
                                                          En Stock
                                                          €482.88 Price
                                                          En Stock
                                                          €482.88 Price
                                                          Cardan droit Megane 3 RSRenault Megane 3 RS Right Driveshaft (Original)
                                                              Original Renault Megane 3 RS Right Driveshaft Original Renault right driveshaft, for optimal transmission of your Megane 3 RS. Discover the compatible gearbox output oil seal at the bottom of the page for perfect sealing.
                                                              €482.88Price
                                                              Cardan droit Megane 3 RSRenault Megane 3 RS Right Driveshaft (Original)
                                                                  Original Renault Megane 3 RS Right Driveshaft Original Renault right driveshaft, for optimal transmission of your Megane 3 RS. Discover the compatible gearbox output oil seal at the bottom of the page for perfect sealing.
                                                                  €482.88Price
                                                                  En Stock
                                                                  €21.77 Price
                                                                  En Stock
                                                                  €21.77 Price
                                                                  Joint double lèvres sortie de cardan Twingo R2Joint double lèvres sortie de cardan Twingo R2
                                                                      Joint double lèvres sortie de cardan Twingo R2 Joint identique pour le coté gauche et droit
                                                                      €21.77Price
                                                                      Joint double lèvres sortie de cardan Twingo R2Joint double lèvres sortie de cardan Twingo R2
                                                                          Joint double lèvres sortie de cardan Twingo R2 Joint identique pour le coté gauche et droit
                                                                          €21.77Price
                                                                          En Stock
                                                                          €26.08 Price
                                                                          En Stock
                                                                          €26.08 Price
                                                                          Graisse de transmission coté boite Megane 3 N4
                                                                              Driveshaft Grease Renault Sport Optimize the longevity and performance of your driveshafts with this high-performance Renault Sport grease. Designed for the Renault Megane N4 equipped with the Sadev gearbox, it ensures optimal lubrication and protection against wear. Essential for maximum reliability in competition.
                                                                              €26.08Price
                                                                              Graisse de transmission coté boite Megane 3 N4
                                                                                  Driveshaft Grease Renault Sport Optimize the longevity and performance of your driveshafts with this high-performance Renault Sport grease. Designed for the Renault Megane N4 equipped with the Sadev gearbox, it ensures optimal lubrication and protection against wear. Essential for maximum reliability in competition.
                                                                                  €26.08Price
                                                                                  Anneau d'arret 2.0 cardan Clio R3
                                                                                      The Clio R3 transmission retaining ring (ref. 7711160756 ) is a performance part from the RENAULT SPORT catalog, essential for securing the transmission of your Renault Clio R3 Max and Renault Clio R3 Access . It ensures reliable and precise retention, crucial for competition. We ship worldwide.
                                                                                      €5.23Price
                                                                                      Anneau d'arret 2.0 cardan Clio R3
                                                                                          The Clio R3 transmission retaining ring (ref. 7711160756 ) is a performance part from the RENAULT SPORT catalog, essential for securing the transmission of your Renault Clio R3 Max and Renault Clio R3 Access . It ensures reliable and precise retention, crucial for competition. We ship worldwide.
                                                                                          €5.23Price
                                                                                          Tulipe gauche Clio 3 Cup
                                                                                              The SADEV Left Side Output Flange (references F1908350 / 7711160348 ) is the gearbox output element that ensures the essential connection between the differential and the driveshaft (Lobro type) of your left-hand transmission. A vital part of the SADEV ST75 sequential gearbox , it is homologated for the...
                                                                                              €583.44Price
                                                                                              Tulipe gauche Clio 3 Cup
                                                                                                  The SADEV Left Side Output Flange (references F1908350 / 7711160348 ) is the gearbox output element that ensures the essential connection between the differential and the driveshaft (Lobro type) of your left-hand transmission. A vital part of the SADEV ST75 sequential gearbox , it is homologated for the...
                                                                                                  €583.44Price
                                                                                                  Thermoplastic outer CV joint boot kit with clamps and grease for Renault Clio 2 RS track cars.
                                                                                                      Do not risk a massive grease spray over your high-performance front brake discs, sudden failure of your outer CV joint, or a forced retirement during a competitive rally stage. The premium Kit soufflet graisse et collier coté bol Clio 2 Gr N is the high-strength driveline...
                                                                                                      €107.52Price
                                                                                                      Thermoplastic outer CV joint boot kit with clamps and grease for Renault Clio 2 RS track cars.
                                                                                                          Do not risk a massive grease spray over your high-performance front brake discs, sudden failure of your outer CV joint, or a forced retirement during a competitive rally stage. The premium Kit soufflet graisse et collier coté bol Clio 2 Gr N is the high-strength driveline...
                                                                                                          €107.52Price
                                                                                                          En Stock
                                                                                                          €1.75 Price
                                                                                                          En Stock
                                                                                                          €1.75 Price
                                                                                                          Anneau d'arret transmission circlips Twingo R2
                                                                                                              Anneau d'arret transmission circlips Twingo R2 Référence: 7711167345
                                                                                                              €1.75Price
                                                                                                              Anneau d'arret transmission circlips Twingo R2
                                                                                                                  Anneau d'arret transmission circlips Twingo R2 Référence: 7711167345
                                                                                                                  €1.75Price
                                                                                                                  En Stock
                                                                                                                  €1,145.76 Price
                                                                                                                  En Stock
                                                                                                                  €1,145.76 Price
                                                                                                                  Left Evo reinforced driveshaft CV axle Renault Sport Megane N4 SADEV ref 7711167653
                                                                                                                      Don't risk driveshaft failure or loss of traction during a rally stage or track day. The genuine Renault Sport / SADEV left evolved (Evo) driveshaft (Reference: 7711167653) is specifically engineered to handle high torque output and extreme mechanical stress on the...
                                                                                                                      €1,145.76Price
                                                                                                                      Left Evo reinforced driveshaft CV axle Renault Sport Megane N4 SADEV ref 7711167653
                                                                                                                          Don't risk driveshaft failure or loss of traction during a rally stage or track day. The genuine Renault Sport / SADEV left evolved (Evo) driveshaft (Reference: 7711167653) is specifically engineered to handle high torque output and extreme mechanical stress on the...
                                                                                                                          €1,145.76Price
                                                                                                                          Entraineur de cardan droit Clio Gr N Phase 1SADEV Right Drive Flange F1903162 - Clio 2 Gr N Phase 1 ST66 Gearbox
                                                                                                                              The SADEV Right Drive Flange (F1903162) is the original SADEV part that ensures the final transmission of engine torque from your SADEV ST66 gearbox to the right driveshaft. A specific and essential component for the Renault Clio 2 Group N Phase 1 . A...
                                                                                                                              €934.62Price
                                                                                                                              Entraineur de cardan droit Clio Gr N Phase 1SADEV Right Drive Flange F1903162 - Clio 2 Gr N Phase 1 ST66 Gearbox
                                                                                                                                  The SADEV Right Drive Flange (F1903162) is the original SADEV part that ensures the final transmission of engine torque from your SADEV ST66 gearbox to the right driveshaft. A specific and essential component for the Renault Clio 2 Group N Phase 1 . A...
                                                                                                                                  €934.62Price
                                                                                                                                  Dispo selon configuration
                                                                                                                                  €1,414.73 €1,768.42 Regular price -20% off Price
                                                                                                                                  Dispo selon configuration
                                                                                                                                  €1,414.73 €1,768.42 Regular price -20% off Price
                                                                                                                                  Transmission droite Twingo R2 EVOTransmission droite Twingo R2 EVO
                                                                                                                                    • Pack
                                                                                                                                    Transmission droite Twingo R2 EVO
                                                                                                                                    €1,414.73€1,768.42Regular price-20% offPrice
                                                                                                                                    Transmission droite Twingo R2 EVOTransmission droite Twingo R2 EVO
                                                                                                                                      • Pack
                                                                                                                                      Transmission droite Twingo R2 EVO
                                                                                                                                      €1,414.73€1,768.42Regular price-20% offPrice
                                                                                                                                      En Stock
                                                                                                                                      €16.66 Price
                                                                                                                                      En Stock
                                                                                                                                      €16.66 Price
                                                                                                                                      Soufflet de Cardan Coté BV Phase 2 Clio Gr N
                                                                                                                                          Soufflet de Cardan Coté BV Phase 2 Clio Gr N Référence: 7711129525
                                                                                                                                          €16.66Price
                                                                                                                                          Soufflet de Cardan Coté BV Phase 2 Clio Gr N
                                                                                                                                              Soufflet de Cardan Coté BV Phase 2 Clio Gr N Référence: 7711129525
                                                                                                                                              €16.66Price
                                                                                                                                              Tulipe droite Clio 3 Cup
                                                                                                                                                  The SADEV Right Side Output Flange (references F1908351 / 7711160349 ) is the gearbox output element that ensures the connection between the differential and the driveshaft (Lobro type) of your right-hand transmission. An indispensable part of the SADEV ST75 sequential gearbox , it is homologated for the...
                                                                                                                                                  €338.34Price
                                                                                                                                                  Tulipe droite Clio 3 Cup
                                                                                                                                                      The SADEV Right Side Output Flange (references F1908351 / 7711160349 ) is the gearbox output element that ensures the connection between the differential and the driveshaft (Lobro type) of your right-hand transmission. An indispensable part of the SADEV ST75 sequential gearbox , it is homologated for the...
                                                                                                                                                      €338.34Price
                                                                                                                                                      En Stock
                                                                                                                                                      €16.52 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €16.52 Price
                                                                                                                                                      Collier soufflet sur tulipe diam 93.5 Clio Gr N
                                                                                                                                                          Collier soufflet sur tulipe diam 93.5 Clio Gr N Référence: 77 11 156 805
                                                                                                                                                          €16.52Price
                                                                                                                                                          Collier soufflet sur tulipe diam 93.5 Clio Gr N
                                                                                                                                                              Collier soufflet sur tulipe diam 93.5 Clio Gr N Référence: 77 11 156 805
                                                                                                                                                              €16.52Price
                                                                                                                                                              Entraineur gauche Ragnotti Clio Gr N
                                                                                                                                                                  The SADEV Left Drive Flange (7711129608 / F1903157) is the original SADEV part that ensures the final transmission of engine torque from your SADEV ST66 gearbox to the driveshaft. A crucial link in the kinematic chain of your Renault Clio 2 Group N . A...
                                                                                                                                                                  €806.15Price
                                                                                                                                                                  Entraineur gauche Ragnotti Clio Gr N
                                                                                                                                                                      The SADEV Left Drive Flange (7711129608 / F1903157) is the original SADEV part that ensures the final transmission of engine torque from your SADEV ST66 gearbox to the driveshaft. A crucial link in the kinematic chain of your Renault Clio 2 Group N . A...
                                                                                                                                                                      €806.15Price