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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.
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Transmission gauche Twingo R2
€1,316.82€1,755.76Regular price-25% offPrice
Roulement de Roue avant Twingo RS y compris R1 et R2
7711162816
€80.82Price
Circlips de roulement de roue avant Twingo RS R1 et R2
€1.58Price
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 gauche Megane 3 RS Véritable produit d'origine Renault
€482.88Price
Roulement Ar pour Clio 2 RS.
Lors du changement de disque arrière par un autre que celui d'origine, en général, le roulement n'est pas fourni, nous pouvons vous le fournir.
En cas d'achat de disques arrières et des roulements, nous vous les assemblons gratuitement sur simple demande.
€140.89Price
Joint double lèvres sortie de cardan Twingo R2
Joint identique pour le coté gauche et droit
€21.77Price
Douille à aiguille carter mécanique Megane N4
Référence: 8200135215
€15.05Price
Do not compromise your safety on the track or during a rally stage with low-end components. This front wheel bearing , sourced from the official RENAULT Sport catalogue (Ref: 7711160524) , is the essential part to ensure the steering precision of your Clio R3 Max , Clio 4 Cup , and Clio 4 R3T . Designed to...
€98.40Price
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
Soufflet de transmission coté boite Megane 3 N4
€26.38Price
Do not take any risk of oil leak on the gearbox of your Clio 3 RS or Megane 3 RS ! This main shaft oil seal is a genuine Renault part. It ensures perfect sealing behind the clutch release bearing, preventing gear oil from escaping and, worse,...
€20.08Price
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
Roulement arbre primaire carter embrayage Megane 3 RS
€53.66Price
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
Roulement arbre primaire carter mécanique Megane 3 RS
€29.72Price
Hardware Overhaul Kit Gearbox SADEV ST90 Renault Sport Clio 3 R3 (Ref: 7711163607)
Ensure the preventive maintenance and reliability of your SADEV ST90 sequential gearbox in your Renault Clio 3 R3 with this genuine Renault Sport hardware overhaul kit (Ref: 7711163607 ). Including various seals, oil seals,...
€698.33Price
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
Roulement de Roue Arrière Clio 3 RS et X85 Cup
€73.26Price
Soufflet de cardan droit coté palier Clio 3 RS
€84.01Price
Collier Serrage Inox D87.5 Twingo R2 Référence: 7711167625
€5.17Price
Jonc d'arrêt transmission NTN Twingo R2 7711167349
€2.23Price
Transmission (cardan) D Twingo RS et R1 Référence: 7711167336
€358.98Price
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
Do not take any risks with the transmission of your Twingo R2 ! Get the Genuine RENAULT Sport Wheel Hub Cup (Tripod Joint Housing), the splined end of the driveshaft that seats into the wheel hub. A critical part for the traction of your sports car . New part sourced from the official catalogue for flawless...
€399.53Price
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
Transmission D - Ragnotti Clio Gr N Référence: 7711129606
€1,418.04Price
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
Anneau d'arret transmission circlips Twingo R2 Référence: 7711167345
€1.75Price
Transmission (cardan) G Twingo RS et R1 Référence: 7711167335
€258.36Price
Collier Serrage Inox D80 Twingo R2 Référence: 7711167624
€3.28Price
Replace your worn or damaged right driveshaft with this high-quality new right driveshaft , specifically designed for the Renault Clio 2 RS Phase 2 and Phase 3 . Ensure smooth and reliable power transmission for optimal performance.
€194.95Price
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Transmission droite Twingo R2 EVO
€1,414.73€1,768.42Regular price-20% offPrice
Anneau d'arret de cardan phase 2 (avec palier) pour clio Gr N 7703066381
€5.14Price
Collier soufflet de cardan Clio 2 Cup X65
Référence : 7711155419
€1.42Price
Soufflet de Cardan Coté BV Phase 2 Clio Gr N Référence: 7711129525
€16.66Price