My Cart
€0.00
Roulement d'arbre secondaire (côté embrayage)Twingo RS et R1
€55.55Price
Pensez à sélectionner votre vehicule pour limiter les resultats de recherche
Our Services
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.
Subcategory
View Left Column
There are 241 products.
Grid
Grid-2
List
List-2
Catelog
Active filters
Primary Shaft Bearing SADEV ST66 (0103034)
Ensure the optimal performance of your SADEV ST66 gearbox with this genuine Renault Sport primary shaft bearing. Designed for the Clio Gr N, it guarantees precise and reliable operation. Essential for maintaining your transmission's performance.
€77.23Price
Roulement de Différentiel pour boite à crabot Gr N Repère 5 sur l’éclate de la clio gr N
€58.80Price
Maintain the reliability of your clutch system with this genuine Renault hydraulic line specifically designed for the Renault Megane 3 RS . This complete assembly includes the high-pressure hose and its pressure accumulator cylinder , ensuring precise and consistent gearbox control, even...
€153.52Price
Kit comprenant: - Les 2 roulements d'autobloquants - Les 2 roulements d'arbre primaire - Les 2 roulements d'arbre secondaire Ne comprend pas: - Les cages à Aiguilles
€293.65Price
Roulement avant Clio Gr N Véritable produit Renault Sport Référence: 6000072543
€75.46Price
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
Secure your transmission with the genuine SADEV secondary shaft nut , a critical component for the reliability of your Renault Clio 3 X85 Cup . Engineered to withstand the extreme stresses of motorsport, this nut ensures perfect gear retention during intensive shifting. As the exclusive SADEV parts distributor for Clio 2 Cup, Clio 3...
€38.75Price
The SADEV 12x58 Final Drive Kit (12-tooth Secondary Shaft F1908058 and 58-tooth Crown Wheel F1908059) is the ultimate transmission part for your Renault Clio 3 X85 Cup equipped with the **SADEV ST75** sequential gearbox. Choosing this final drive ensures maximum acceleration and...
€2,211.77Price
The SADEV 17-Tooth Secondary Shaft (references F9001002 / 0109001002 ) is the drive pinion for the 17/55 final drive ratio in your SADEV ST75 sequential gearbox . This piece is vital for transmitting engine power to the 55-tooth crownwheel and is homologated for the Renault Clio 2 X65 Cup ....
€928.99Price
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
The SADEV 55-Tooth Crownwheel (reference F9001012 ) is an essential component of the 17/55 final drive ratio in your SADEV ST75 sequential gearbox . This genuine part is crucial for gearing and must pair perfectly with the corresponding 17-tooth secondary shaft. It is primarily used on the Renault Clio 2 X65...
€1,031.42Price
Butée embrayage renforcée Helix Clio 16S et Williams
€36.00Price
Douille à aiguille carter mécanique Megane N4
Référence: 8200135215
€15.05Price
Disque d'embrayage Helix organique amorti Clio 16S et Williams
€194.78Price
The SADEV 54-Tooth Crownwheel (reference F1908252 ) is an essential element of the final drive in your SADEV ST75 sequential gearbox . Designed to be assembled with the 15-tooth secondary shaft, this genuine part ensures precise and reliable gearing for the Renault Clio 3 X85 Cup . OPTIMIZ ACCESS is a...
€1,031.42Price
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
The 15-Tooth Secondary Shaft is a fundamental component of the SADEV ST75 sequential transmission in your Renault Clio 3 X85 Cup . Specifically designed for the 15/58 final drive , this part ensures the correct gear reduction of your gearbox. Marketed under references F19080551 and 0119080551 ,...
€928.99Price
Don't let a worn or noisy differential impact the traction and safety of your Renault Clio 3 RS . This genuine Renault assembled differential housing includes the differential, the 69-tooth crown wheel, and the crown wheel bolts, ensuring a reliable replacement that meets manufacturer specifications. You can also find the associated differential...
€404.56Price
- Pack
The Renault Sport clutch master cylinder , reference 7711160250 , is a component of the hydraulic clutch system designed for the Renault Clio 3 RS , including Clio R3 and X85 Cup versions.
The clutch master cylinder converts the force applied to the clutch pedal into hydraulic pressure, allowing the clutch release system...
€114.83Price
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
Conduite hydraulique embrayage coté recepteur Twingo RS R1 et R2
Véritable produit d'origine
€63.55Price
Do not compromise the axial adjustment of your SADEV ST66 gearbox ! This countershaft shim (Ref. F1903028 ) is an essential SADEV brand part to ensure mounting...
€26.60Price
Roulement arbre primaire carter embrayage Megane 3 RS
€53.66Price
Tuyau hydraulique embrayage coté recepteur Twingo RS R1 et R2
Véritable produit d'origine
€46.86Price
Do not let an approximate transmission compromise your stage times. This 56-tooth crown wheel for 11-tooth shafts is an official Renault Sport component, engineered by SADEV specifically for the Renault Clio 2 Group N equipped with the ST66 gearbox . As the exclusive distributor of SADEV parts for the Renault...
€820.75Price
Roulement arbre primaire carter mécanique Megane 3 RS
€29.72Price
Do not risk transmission slippage during hard acceleration, premature wear of your friction disc, or a catastrophic mechanical failure during aggressive gear changes on track. The premium uprated clutch pressure plate mechanism for the Renault Clio 3 RS and X85 Cup delivers...
€228.74Price
Arbre Secondaire 11 dents (pour couronne 56 dents) Clio Gr N Référence: 7711129543
€1,004.35Price
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
Roulement de Roue Arrière Clio 3 RS et X85 Cup
€73.26Price
Couple 12X53 - petites canelures Twingo R2
Référence: 7711162863
€1,767.94Price
Arbre secondaire 12 dents (pour couronne 63 dts) Clio Gr N 7711129473
€1,017.37Price
Don't let poor gear ratios ruin your stage times. This official 52-tooth crown wheel , manufactured by SADEV for Renault Sport , is the key component for your 11/52 final drive . Specifically designed for the Renault Clio 2 Gr.N equipped with the ST66 gearbox , it...
€565.21Price
Do not let a fragile transmission compromise your rally performance. This 11-tooth secondary shaft , specifically designed to mate with a 52-tooth crown wheel , is an official Renault Sport competition part manufactured by SADEV . Destined for the ST66 gearbox of the Renault Clio 2 Group N ,...
€1,075.99Price
Couronne 63 dents ( 12 / 63 ) équipée Clio Gr N Référence: F19030231
€898.58Price
Couple 12X57 court - grosses cannelures Twingo R2 Référence: 7711167609
€1,746.37Price