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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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  • Categories: Hardware (Screws, nuts...)
Sur commande ou en cours de réappro
€2.63 Price
Sur commande ou en cours de réappro
€2.63 Price
SADEV Ø41.2x3 nitrile O-ring – Ref. 0201027C – Clio 2 V6 Trophy
  • New
    Avoid oil leaks and loss of sealing on your SADEV gearbox with this nitrile O-ring Ø41.2 x 3 mm , sold under reference 0201027C . This sealing component is intended for the Renault Clio 2 V6 Trophy and is suitable for the...
    €2.63Price
    SADEV Ø41.2x3 nitrile O-ring – Ref. 0201027C – Clio 2 V6 Trophy
    • New
      Avoid oil leaks and loss of sealing on your SADEV gearbox with this nitrile O-ring Ø41.2 x 3 mm , sold under reference 0201027C . This sealing component is intended for the Renault Clio 2 V6 Trophy and is suitable for the...
      €2.63Price
      Sur commande ou en cours de réappro
      €2.51 Price
      Sur commande ou en cours de réappro
      €2.51 Price
      SADEV 82x3 nitrile O-ring 0201028C – Renault Clio 2 V6 Trophy
      • New
        Avoid the risk of oil leaks and loss of sealing on your competition transmission with the SADEV nitrile O-ring 82 x 3 mm , reference 0201028C , designed for the Renault Clio 2 V6 Trophy . This SADEV sealing...
        €2.51Price
        SADEV 82x3 nitrile O-ring 0201028C – Renault Clio 2 V6 Trophy
        • New
          Avoid the risk of oil leaks and loss of sealing on your competition transmission with the SADEV nitrile O-ring 82 x 3 mm , reference 0201028C , designed for the Renault Clio 2 V6 Trophy . This SADEV sealing...
          €2.51Price
          Sur commande ou en cours de réappro
          €3.16 Price
          Sur commande ou en cours de réappro
          €3.16 Price
          SADEV Fill Plug Seal 5002017C – Renault Clio 2 V6 Trophy
          • New
            Do not risk oil leakage from your sequential gearbox during intensive track sessions. The SADEV original fill plug seal (Part Number: 5002017C) is designed for the Renault Clio 2 V6 Trophy and helps maintain proper sealing around the gearbox...
            €3.16Price
            SADEV Fill Plug Seal 5002017C – Renault Clio 2 V6 Trophy
            • New
              Do not risk oil leakage from your sequential gearbox during intensive track sessions. The SADEV original fill plug seal (Part Number: 5002017C) is designed for the Renault Clio 2 V6 Trophy and helps maintain proper sealing around the gearbox...
              €3.16Price
              Sur commande ou en cours de réappro
              €1.78 Price
              Sur commande ou en cours de réappro
              €1.78 Price
                  Ensure your drivetrain's integrity with this genuine Renault Sport M10x70 CHC screw (Reference: 7711064285 ). Specifically calibrated for SADEV ST75 sequential gearbox assembly, it provides optimal structural anchoring into the engine block. This critical component is sold individually; only one unit is required to finalize...
                  €1.78Price
                      Ensure your drivetrain's integrity with this genuine Renault Sport M10x70 CHC screw (Reference: 7711064285 ). Specifically calibrated for SADEV ST75 sequential gearbox assembly, it provides optimal structural anchoring into the engine block. This critical component is sold individually; only one unit is required to finalize...
                      €1.78Price
                      Sur commande ou en cours de réappro
                      €7.97 Price
                      Sur commande ou en cours de réappro
                      €7.97 Price
                      Genuine Renault Secondary Shaft Oil Deflector for Renault Clio 2 RS GearboxGenuine Renault Secondary Shaft Oil Deflector for Renault Clio 2 RS Gearbox
                          Protect your Renault Clio 2 RS gearbox with the genuine Renault secondary shaft oil deflector . This essential part ensures optimal lubrication and prevents oil leaks, guaranteeing the longevity and performance of your transmission. Crucial for maintaining your gearbox's integrity, this OEM component helps you avoid costly and unexpected repairs.
                          €7.97Price
                          Genuine Renault Secondary Shaft Oil Deflector for Renault Clio 2 RS GearboxGenuine Renault Secondary Shaft Oil Deflector for Renault Clio 2 RS Gearbox
                              Protect your Renault Clio 2 RS gearbox with the genuine Renault secondary shaft oil deflector . This essential part ensures optimal lubrication and prevents oil leaks, guaranteeing the longevity and performance of your transmission. Crucial for maintaining your gearbox's integrity, this OEM component helps you avoid costly and unexpected repairs.
                              €7.97Price
                              Sur commande ou en cours de réappro
                              €505.25 Price
                              Sur commande ou en cours de réappro
                              €505.25 Price
                              Carter embrayage Boite Crabot Clio Gr NCarter embrayage Boite Crabot Clio Gr N
                                  Carter embrayage Boite Crabot Clio Gr N 7711129471
                                  €505.25Price
                                  Carter embrayage Boite Crabot Clio Gr NCarter embrayage Boite Crabot Clio Gr N
                                      Carter embrayage Boite Crabot Clio Gr N 7711129471
                                      €505.25Price
                                      Sur commande ou en cours de réappro
                                      €132.78 Price
                                      Sur commande ou en cours de réappro
                                      €132.78 Price
                                      Collection rondelles précontrainte arbre primaire boite JC5Collection rondelles précontrainte arbre primaire boite JC5
                                          Collection rondelles précontrainte arbre primaire boite JC5
                                          €132.78Price
                                          Collection rondelles précontrainte arbre primaire boite JC5Collection rondelles précontrainte arbre primaire boite JC5
                                              Collection rondelles précontrainte arbre primaire boite JC5
                                              €132.78Price
                                              Sur commande ou en cours de réappro
                                              €103.91 Price
                                              Sur commande ou en cours de réappro
                                              €103.91 Price
                                              Collection rondelles précontrainte arbre secondaire boite JC5Genuine Renault JC5 Gearbox Secondary Shaft Shim Kit - Clio 2 RS & Williams
                                                  Don't let wear compromise your gearbox's performance. Opt for this collection of genuine RENAULT shims , specifically designed for precise adjustment of the secondary shaft preload on JC5 gearboxes . Essential for your Renault Clio 2 RS or Clio Williams , this kit ensures an extended transmission lifespan and...
                                                  €103.91Price
                                                  Collection rondelles précontrainte arbre secondaire boite JC5Genuine Renault JC5 Gearbox Secondary Shaft Shim Kit - Clio 2 RS & Williams
                                                      Don't let wear compromise your gearbox's performance. Opt for this collection of genuine RENAULT shims , specifically designed for precise adjustment of the secondary shaft preload on JC5 gearboxes . Essential for your Renault Clio 2 RS or Clio Williams , this kit ensures an extended transmission lifespan and...
                                                      €103.91Price
                                                      Dispo selon configuration
                                                      €329.29 Price
                                                      Dispo selon configuration
                                                      €329.29 Price
                                                      Guide de poussoir équipé Twingo R2
                                                        • Pack
                                                        Guide de poussoir équipé Twingo R2 Référence: 7711163851
                                                        €329.29Price
                                                        Guide de poussoir équipé Twingo R2
                                                          • Pack
                                                          Guide de poussoir équipé Twingo R2 Référence: 7711163851
                                                          €329.29Price
                                                          Sur commande ou en cours de réappro
                                                          €9.23 Price
                                                          Sur commande ou en cours de réappro
                                                          €9.23 Price
                                                          Soufflet de Cardan coté roue Clio Gr NSoufflet de Cardan coté roue Clio Gr N
                                                              Soufflet de Cardan coté roue Clio Gr N Produit uniquement commercialisé en kit dorénavant Voir plus bas les produits associés
                                                              €9.23Price
                                                              Soufflet de Cardan coté roue Clio Gr NSoufflet de Cardan coté roue Clio Gr N
                                                                  Soufflet de Cardan coté roue Clio Gr N Produit uniquement commercialisé en kit dorénavant Voir plus bas les produits associés
                                                                  €9.23Price
                                                                  Sur commande ou en cours de réappro
                                                                  €17.50 Price
                                                                  Sur commande ou en cours de réappro
                                                                  €17.50 Price
                                                                  Huile Boite ELF NFP 75w80
                                                                      Huile de Boite ELF NFP 75w80 Bidon de 1L. Lubrifiant 100% Synthèse. Pour boîtes et ponts. Pour conditions d’usage hautes performances et compétition. 0% de perte au cisaillement. Amélioration du rendement. Huile conseillée pour les Boites des Megane 3 RS (Capacité de la boite 2.4L) Possibilité de vous fournir en bidons de 5L
                                                                      €17.50Price
                                                                      Huile Boite ELF NFP 75w80
                                                                          Huile de Boite ELF NFP 75w80 Bidon de 1L. Lubrifiant 100% Synthèse. Pour boîtes et ponts. Pour conditions d’usage hautes performances et compétition. 0% de perte au cisaillement. Amélioration du rendement. Huile conseillée pour les Boites des Megane 3 RS (Capacité de la boite 2.4L) Possibilité de vous fournir en bidons de 5L
                                                                          €17.50Price
                                                                          Sur commande ou en cours de réappro
                                                                          €67.75 Price
                                                                          Sur commande ou en cours de réappro
                                                                          €67.75 Price
                                                                          Biellette de boite de vitesse Clio 2 RS et Gr N
                                                                              Biellette de boite de vitesse Clio 2 RS et Gr N. Véritable pièce d'origine
                                                                              €67.75Price
                                                                              Biellette de boite de vitesse Clio 2 RS et Gr N
                                                                                  Biellette de boite de vitesse Clio 2 RS et Gr N. Véritable pièce d'origine
                                                                                  €67.75Price
                                                                                  Sur commande ou en cours de réappro
                                                                                  €159.85 Price
                                                                                  Sur commande ou en cours de réappro
                                                                                  €159.85 Price
                                                                                  Kit synchro JC avec synchro 1-2 ancienne génération
                                                                                      Kit synchro JC avec synchro 1-2 ancienne génération
                                                                                      €159.85Price
                                                                                      Kit synchro JC avec synchro 1-2 ancienne génération
                                                                                          Kit synchro JC avec synchro 1-2 ancienne génération
                                                                                          €159.85Price