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Roulement d'arbre secondaire (côté embrayage)Twingo RS et R1
€55.55Price
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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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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
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
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
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
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
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
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 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
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 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
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
Roulement de Roue Arrière Clio 3 RS et X85 Cup
€73.26Price
Sur commande ou en cours de réappro
€196.99
Price
Sur commande ou en cours de réappro
€196.99
Price
Do not risk premature clutch failure in competition . Without a SADEV clutch guide tube (Ref. F0073019 ) in perfect condition, you lose the precise guidance necessary for the clutch release bearing , leading to a risk of slipping or blocking on your Clio 2 X65...
€196.99Price
Restore precise and smooth clutch engagement on your legendary Renault Clio Williams with this genuine Renault clutch cable . Essential for fluid gear changes and the longevity of your gearbox, this cable guarantees reliability and pedal feel that meet factory standards. Don't let a stiff pedal or sloppy travel ruin your driving pleasure.
€94.79Price
The Renault Sport Clutch Circuit Bleed Hydraulic Hose (ref. 7711167173) is an official RENAULT SPORT part designed for the Renault Megane N4 . It allows for easy and efficient bleeding of the clutch circuit, ensuring optimal performance. Optimiz Access is the official distributor of this part.
€60.64Price
Sur commande ou en cours de réappro
€187.96
Price
Sur commande ou en cours de réappro
€187.96
Price
Original Renault Megane 3 RS Clutch Master Cylinder
Original Renault part, for optimal performance of your Megane 3 RS. Discover complementary products at the bottom of the page for complete customization.
€187.96Price
Don't let a worn dual-mass flywheel harm the balance and responsiveness of your Clio 3 RS . This single-mass flywheel is the ideal technical solution to reliably secure your powertrain and improve your F4R engine's rev response. By keeping an original part that is often at its end-of-life on these generations,...
€331.39Price
Sur commande ou en cours de réappro
€1,542.64
Price
Sur commande ou en cours de réappro
€1,542.64
Price
Volant Moteur bi masse origine Megane 4 RS boite méca
€1,542.64Price
Support échangeur huile Bv Megane N4 Référence: 7711167051
€51.83Price
Do not risk a total mechanical failure of your gear stack in the middle of a race for a simple worn-out retaining ring. This official genuine Renault Sport / SADEV secondary shaft end circlip (Catalogue Reference: 7711162214 ) is the critical locking...
€1.13Price
Sur commande ou en cours de réappro
€3.61
Price
Sur commande ou en cours de réappro
€3.61
Price
Do not risk a totally preventable gear oil leak ruining your next rally stage or circuit session. This official genuine Renault Sport / SADEV clutch shaft end blanking plug O-ring (Catalogue Reference: 7711162188 ) is the vital sealing component required to...
€3.61Price
Sur commande ou en cours de réappro
€15.06
Price
Sur commande ou en cours de réappro
€15.06
Price
Do not risk destroying your dog-engagement gearbox in the middle of a stage for a simple worn-out guidance component. This official genuine Renault Sport / SADEV clutch shaft end bearing (Catalogue Reference: 7711162187 ) is the masterpiece mechanical part...
€15.06Price
Sur commande ou en cours de réappro
€1.12
Price
Sur commande ou en cours de réappro
€1.12
Price
Do not risk an irremediable mechanical failure during gear changes in a race for a simple fatigued retaining ring. This official genuine Renault Sport / SADEV clutch shaft end SB15 circlip (Catalogue Reference: 7711162186 ) is the vital safety component...
€1.12Price
Sur commande ou en cours de réappro
€2.86
Price
Sur commande ou en cours de réappro
€2.86
Price
Do not ruin your next rally stage or circuit session due to a totally preventable transmission failure. This official genuine Renault Sport / SADEV clutch shaft snap ring (Catalogue Reference: 7711162185-0109908008 ) is the essential safety retaining ring...
€2.86Price