My Cart
€0.00
Original RENAULT driveshaft nut compatible with the Renault Megane 2 RS and Renault Clio 3 RS . An essential safety element for your transmissions. Discover related complementary products below.
€17.27Price
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 365 products.
Grid
Grid-2
List
List-2
Catelog
Active filters
Maximize your braking system's reliability with this brake fluid separation kit for hydraulic release bearings . Designed to isolate the clutch circuit from the main braking circuit, this upgrade is essential for sports vehicles pushed to the limit on the...
€46.67Price
En Stock
€108.19
Price
En Stock
€108.19
Price
Collection soufflet de transmission gauche coté boite Clio 3 RS et Megane 2 RS
Véritable produit d'origine
€108.19Price
Cale de butée embrayage série Twingo R2
Référence: 7711162840
€55.32Price
Joint etancheité capot de 5eme Clio RS et Gr N
€7.51Price
The Sadev F1903052 protection guard is an essential safety component for the reliability of the ST66 dog-ring gearbox in your Renault Clio 2 Gr N . It protects vital differential components against debris and external shocks, thus avoiding costly damage to the transmission . ...
€58.50Price
Raccord coudé Formule Renault 2.0
Référence: 7705030272
€33.85Price
Kit soufflet de palier de Cardan Clio 2 RS
Attention, plusieurs modeles existent, merci de verifier la compatibilité avec votre cardan
€102.54Price
Don't let a simple failure compromise the driving precision of your Clio 2 RS . This right-hand driveshaft oil seal (joint spi) is a genuine RENAULT original part , guaranteeing renewed **reliability and performance**. Essential for the sealing of your gearbox, it maintains the oil level and protects your...
€26.29Price
Vis CHC M8-30 cl:8.8 zinguée noir Twingo R2
Référence: 7711162293
€1.55Price
Sur commande ou en cours de réappro
€16.80
Price
Sur commande ou en cours de réappro
€16.80
Price
Do not risk a fatal bearing displacement at the heart of your racing transmission. This official Renault Sport SB120 retaining clip (Manufacturer Part Number: 7711162216 ) is the only certified snap ring designed to securely lock the differential...
€16.80Price
Sur commande ou en cours de réappro
€36.60
Price
Sur commande ou en cours de réappro
€36.60
Price
Do not risk incorrect mechanical play that would prematurely destroy your racing transmission. This official Renault Sport differential shimming washer (Manufacturer Part Number: 7711162220 ), sold individually , is the essential genuine...
€36.60Price
Sur commande ou en cours de réappro
€1.62
Price
Sur commande ou en cours de réappro
€1.62
Price
Secure your SADEV ST75 sequential gearbox assembly with this genuine Renault Sport M10x50 CHC screw (Reference: 7711064819 ). Specifically engineered for engine-to-gearbox coupling on competition chassis, it guarantees the essential structural strength required under extreme mechanical stress. Sold individually; two units are...
€1.62Price
Sur commande ou en cours de réappro
€420.00
Price
Sur commande ou en cours de réappro
€420.00
Price
The SADEV Swing Arm Bracket Reinforcement (F0073025) is an essential structural part designed to prevent cracking of the mechanical casing of your SADEV ST66 gearbox on the Renault Clio 2 Group N .
This original SADEV reinforcement increases the...
€420.00Price
Sur commande ou en cours de réappro
€93.49
Price
Sur commande ou en cours de réappro
€93.49
Price
Don't let wear and tear on your SADEV ST75 sequential gearbox hinder the performance of your Renault Clio 3 X85 Cup . This comprehensive revision kit contains all essential O-rings , oil seals , compression springs , and indexing springs to restore the reliability and precision of your transmission. Don't wait...
€93.49Price
Sur commande ou en cours de réappro
€207.47
Price
Sur commande ou en cours de réappro
€207.47
Price
Genuine Renault Gearbox Shaft Bearing + Retaining Plate Kit for Clio 4 RS EDC
Optimize the reliability and longevity of the EDC transmission in your Renault Clio 4 RS with this genuine Renault gearbox shaft bearing and retaining plate kit . An essential set for optimal support of the transmission shafts. Discover other gearbox...
€207.47Price
Sur commande ou en cours de réappro
€8.54
Price
Sur commande ou en cours de réappro
€8.54
Price
Genuine Renault Differential Tripod Retaining Ring (Circlip) for JC5 and JB3 gearboxes. Compatible with Renault Clio 2 RS, Clio 16S, Clio Williams. Ensure the longevity of your transmission with this quality part.
€8.54Price
Sur commande ou en cours de réappro
€85.09
Price
Sur commande ou en cours de réappro
€85.09
Price
Don't risk excessive end play on your transmission shafts or premature gear wear during a gearbox overhaul. This genuine Renault retaining snap ring kit for TL4 manual gearboxes allows millimeter-precise shaft end-play adjustment on your Renault Clio 3...
€85.09Price
TL4 secondary shaft oil deflector , an original Renault component designed for the Renault Clio 3 RS 2.0 16V . This internal transmission component contributes to proper oil management around the secondary shaft and to the correct operation of the gearbox lubrication system.
A damaged, deformed or missing oil deflector can compromise the intended...
€0.94Price
Sur commande ou en cours de réappro
€19.57
Price
Sur commande ou en cours de réappro
€19.57
Price
Secure your transmission gear stack assembly and maintain absolute shaft pretension with this genuine M18 x 150 Input Shaft Nut (Right-Hand Thread) for the Renault Clio Group N , commercialized under part number F1903212 . This high-tensile locking fastener is...
€19.57Price
Sur commande ou en cours de réappro
€0.00
Price
Sur commande ou en cours de réappro
€0.00
Price
Sur commande ou en cours de réappro
€361.33
Price
Sur commande ou en cours de réappro
€361.33
Price
Prevent gear crunching under heavy deceleration, gear pop-outs during aggressive special rally stages, and premature wear on your transmission shafts. The high-performance Gearbox Overhaul Rebuild Kit for Clio Group N (Commercial Reference: KITREVST66JCGN1) aggregates all...
€361.33Price
Sur commande ou en cours de réappro
€69.92
Price
Sur commande ou en cours de réappro
€69.92
Price
Gear Shift Sensor (Cut-Off Switch) SADEV Renault Sport (Ref: 7711162256 & 1100077119)
Ensure fast and precise gear changes on your SADEV sequential gearbox of your Renault Twingo R2 , Renault Clio R3 , or Renault Clio 3 X85 Cup with this official Renault Sport gear shift sensor (cut-off...
€69.92Price
Graisse de cardan Haute Température Clio Gr N Référence: 7711127025
€24.84Price
Genuine Driveshaft Oil Seal Renault Clio 4 RS (Identical Left & Right)
Don't let an oil leak spoil your experience! This genuine Renault driveshaft oil seal is crucial for ensuring the seal between the driveshaft and the gearbox of your Renault Clio 4 RS . Identical part for both...
€33.68Price
O-Ring Ø82X2 Gearbox Casing SADEV ST75 Renault Sport Clio 3 R3 (Ref: 7711162270)
Ensure the perfect seal of the casing junction of your SADEV ST75 sequential gearbox in your Renault Clio 3 R3 with this genuine Renault Sport O-ring Ø82X2 (Ref: 7711162270 ). A crucial element to prevent oil leaks and guarantee...
€14.57Price
Joint torique Ø82x2 pour flasque de boite Clio R3
€2.81Price
Sur commande ou en cours de réappro
€7.31
Price
Sur commande ou en cours de réappro
€7.31
Price
Joint double lèvres nitrile Ø 20 x 40 x 7 pour ST75 14
Référence: 0205001
€7.31Price
Joint simple lèvre Ø20X32X7
Twingo R2 Référence: 7711162226
€18.22Price
Soufflet de cardan gauche coté roue Ø109 Clio R3
Référence: 7711162996
€20.57Price
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
Sur commande ou en cours de réappro
€9.49
Price
Sur commande ou en cours de réappro
€9.49
Price
Vis de support de cable d'embrayage Clio 2 RS et Gr N
€9.49Price