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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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The SADEV Wheel Housing (Hub Carrier) (references 7700108002 , 7711155366 , 1008025 ) is an essential part for ensuring the fastening and reliability of the driveshaft at the wheel end on your competition vehicle . It is used notably on the Renault Clio 2 X65 Cup equipped with the SADEV...
€130.96Price
Collection soufflet Megane 3 RS coté roue
Véritable produit d'origine
€65.56Price
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
Sur commande ou en cours de réappro
€453.52
Price
Sur commande ou en cours de réappro
€453.52
Price
Sur commande ou en cours de réappro
€548.00
Price
Sur commande ou en cours de réappro
€548.00
Price
Discover the HELIX MOTORSPORT clutch mechanism, designed specifically for the Renault Clio 3 RS . Optimize your vehicle's performance with increased power transmission and unwavering reliability. To complete your installation, explore our compatible clutch discs at the bottom of the page.
€548.00Price
Volant Moteur allégé pour Megane 3 RS Convient pour l'embrayage d'origine ou tout autre embrayage renforcé compatible avec le volant moteur d'origine. Parfait en remplacement du Bimasse d'origine Poids: 5.7
€553.36Price
Sur commande ou en cours de réappro
€110.35
Price
Sur commande ou en cours de réappro
€110.35
Price
Do not let a simple tear immobilize your sports car or destroy your transmission. This right-hand inner driveshaft boot (gearbox side) is a genuine Renault (OEM) part , specifically designed to withstand the thermal and mechanical stresses of the Renault Clio 4 RS . Choosing manufacturer quality over aftermarket parts ensures a perfect seal...
€110.35Price
Palier transmission droite Twingo RS
livré sans le roulement
€62.33Price
Soufflet de cardan gauche coté boite Clio 4 RS
€100.99Price
Conduite hydraulique embrayage Megane 2 RS DCI
Véritable produit d'origine
€179.08Price
Embayage pour kit embrayage monomasse Megane RS
Uniquement compatible avec notre kit volant moteur
€240.00Price
Kit joints butée embrayage évo Clio 4 X98 Cup
Référence: 0102990612
€80.71Price
Raccord CSC de butée Clio 3 X85 Cup
Référence: 7711160232
€406.48Price
Sur commande ou en cours de réappro
€80.83
Price
Sur commande ou en cours de réappro
€80.83
Price
Collection de soufflet de cardan gauche coté boite Clio 2 RS Phase 1
€80.83Price
Sur commande ou en cours de réappro
€236.93
Price
Sur commande ou en cours de réappro
€236.93
Price
Disque d'embrayage Helix 4 patins amortis Clio 16s et Williams
€236.93Price
Sur commande ou en cours de réappro
€304.75
Price
Sur commande ou en cours de réappro
€304.75
Price
Mécanisme d'embrayage Helix Tarage Rallye Clio 16S et Williams
€304.75Price
Mécanisme d'embrayage Helix Clio 16S et Williams
€284.74Price
Sur commande ou en cours de réappro
€428.75
€504.41
Regular price
-15% off
Price
Sur commande ou en cours de réappro
€428.75
€504.41
Regular price
-15% off
Price
Don't take any risks with your Renault Clio 3 Cup 's transmission. This 4-pad clutch disc , reference 7711162520 , is a genuine Renault Sport part, specifically designed for competition. Not opting for this disc means risking crucial loss of traction out of corners,...
€428.75€504.41Regular price-15% offPrice
Sur commande ou en cours de réappro
€1,119.42
Price
Sur commande ou en cours de réappro
€1,119.42
Price
Do you own a Renault Megane N4 and are seeking uncompromising performance? The original RENAULT Sport right driveshaft (cardan) reference 7711167654 is the essential part to maintain the efficiency and reliability of your competition vehicle. From the official RENAULT Sport catalog , and exclusively distributed by Optimiz Access, this part is...
€1,119.42Price
Sur commande ou en cours de réappro
€1,226.27
Price
Sur commande ou en cours de réappro
€1,226.27
Price
Complete Assembled Right Transmission SADEV for Renault Clio 2 CUP (Ref: 7711155142)
Original Renault Sport competition part, optimize the performance of your Clio 2 CUP equipped with the SADEV ST75 sequential gearbox. Discover other compatible transmission components and accessories at the bottom of the page.
€1,226.27Price
Sur commande ou en cours de réappro
€16.37
Price
Sur commande ou en cours de réappro
€16.37
Price
Output Shaft Oil Seal (Double Lip) SADEV ST75 (0100205044)
Ensure optimal sealing of your transmission with this genuine Renault Sport output shaft oil seal (double lip). Designed for the Clio 2 and 3 Cup equipped with the SADEV ST75 gearbox, it prevents oil leaks and maintains your transmission's performance. Essential for maximum reliability in...
€16.37Price
Sur commande ou en cours de réappro
€75.23
Price
Sur commande ou en cours de réappro
€75.23
Price
Collection soufflet transmission côté boite droit et gauche Megane N4
€75.23Price
Arbre de transmission Gauche Clio R3T
Référence: 8201529994
€470.74Price
Soufflet de tulipe ( entraineur ) Clio R3T
Référence: 8201366862
€13.66Price
Arbre de transmission droit Clio R3T
Référence: 8201529997
€521.58Price
