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Rondelle mince de calage Ø 51 x 40 ép. 0,20
€9.17Price
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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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Rapport 1-2 12/36-16/34 Twingo R2
Référence: 7711163857
€1,834.33Price
Do not compromise your 5th gear assembly! This SADEV Anti-Rotation Adjustment Shim (F1903032) is a vital original SADEV part for locking the threaded insert onto the shaft of your SADEV ST66 gearbox.
Its role is to prevent the accidental rotation of the 5th gear...
€3.50Price
Left Differential Sealing Cover SADEV ST66 (F1903055)
Ensure the sealing of your SADEV ST66 gearbox with this genuine SADEV cover. Designed for the Clio Gr N, it accommodates the drive shaft oil seal. Essential to prevent leaks and maintain your transmission's performance.
€201.08Price
Optimize the traction of your Renault Clio 2 Gr.N with the official SADEV limited-slip differential (LSD) plate set . Designed for the ST66 gearbox , this kit (reference F19030701 ) is essential to maintain your differential's preload and torque bias. Don't let worn plates cost you precious seconds...
€553.00Price
Don't compromise your **Renault Twingo 2 RS** or **Twingo R1**'s transmission! This **original RENAULT flywheel** is essential for a perfect connection between the engine and gearbox. A faulty flywheel can damage your clutch and degrade driving comfort. Choose the reliability and precision of an original part. You'll find associated complementary products at the bottom of this page.
€346.48Price
Joint torique nitrile Ø 110 x 3 Clio Gr N Référence: 0201057
€2.03Price
Conduite hydraulique avant récepteur Clio 3 RS
€97.92Price
Conduite hydraulique sortie emetteur Clio 3 RS
€97.92Price
Do not underestimate small parts! This SADEV Reverse Gear Washer (F1903035) is an essential original SADEV part for the correct positioning and play of the reverse gear pinion in your SADEV ST66 gearbox.
Regular replacement of this washer ensures the maintenance of tolerances ...
€48.74Price
Huile de boite NFX bidon de 5L
remplace dès à présent l’huile NFJ et la NFP
Développé pour les boites de vitesse manuelles fortement sollicités
€85.08Price
Mécanisme d'embrayage Megane N4 Référence: 7711167140
€1,369.68Price
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Bidon de 1L De lubrifiant Boite et Pont Motul Gear LS Lubrifiant Compétition 100% synthèse. Spécialement développé pour les véhicules haute performance et de compétition : Circuit, Rallye, Rallye Raid, Transmission des véhicules électriques… Pour tous ponts hypoïdes avec glissement limité, boîte de vitesses avec différentiel à glissement limité intégré, transmissions mécaniques, boites de...
€19.90Price
Optimize the performance of your SADEV ST66 gearbox with this original Renault Sport 1-2 dog gear (ref. F1903011). Designed by SADEV , it ensures precise and rapid gear changes, essential for competition in the Renault Clio 2 Gr N .
€202.03Price
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Ensure the critical sealing of your transmission with this genuine Renault gearbox output oil seal . Perfectly suited for the Renault Twingo 2 RS , this seal provides a hermetic barrier between the gearbox and your left or right driveshaft . Don't let an oil leak compromise your gear set:...
€36.77Price
Ensure the integrity of your transmission with the genuine SADEV input shaft (reference F9001003 ), specifically designed for the ST75 sequential gearbox of the Renault Clio 2 X65 Cup . As the exclusive SADEV parts distributor for Clio 2 (Gr N / Cup), Clio 3 Cup, Megane N4, and Twingo R2 ,...
€766.36Price
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Protect your transmission’s integrity with this genuine Renault driveshaft oil seal . Specifically designed for the Renault Clio 3 RS , it ensures a perfect seal between the gearbox and the nearside (left) driveshaft . Don't risk a costly mechanical failure: using an original part is the...
€36.77Price
Don't risk damaging your entire transmission during track days or racing events. The genuine SADEV 6-dog dog ring ensures firm, immediate gear engagement on the SADEV ST75-14 sequential gearbox . A critical wear part essential for maintaining precise gear shifts on Renault Clio 2 X65 Cup and...
€176.29Price
M10 x 20 Hex Head Bolt – SADEV Clio 2 RS Group N
The SADEV hex head bolt M10 x 20, reference F0044009 , is a specially machined fastener listed for the Renault Clio 2 RS Group N equipped with a...
€13.31Price
The AP RACING Hydraulic Clutch Release Bearing (ref. 7711160788) is a high-performance part from the RENAULT SPORT catalog. Designed for the Renault Clio R3 and Renault Twingo R2 , it ensures smooth and precise clutch operation for optimal sports driving.
€658.85Price
Flasque support potentiomètre Twingo R2
Référence: 7711163829
€64.20Price
Ensure your clutch system's reliability with the genuine Renault Sport AP Racing clutch release bearing outlet hose . Specifically engineered for Twingo R2 and Clio R3 models equipped with the latest generation AP Racing bearings , this critical component guarantees precise and consistent...
€48.82Price
Pignon fou de 2eme 40 dents boite TL4
De nombreuses differences existent sur les boite TL4, merci de nous contacter afin que nous puissions vous confirmer la compatibilité de la pièce
€208.81Price
An essential detail for the proper function of your Renault Clio 3 RS 's TL4 gearbox , this genuine new Renault hollow primary shaft bolt serves a dual function of fastening and lubrication. Its specific design is crucial for the gearbox's internal integrity. Do not compromise your transmission's reliability by reusing a used bolt during a fluid change or repair.
€13.67Price
The AP RACING 6-Paddle Clutch Disc (ref. 7711162566) is a high-performance part from the RENAULT SPORT catalog. Designed for the Renault Clio R3 , it offers optimal power transmission for an unparalleled sporty driving experience.
€329.00Price
The AP RACING clutch release bearing shim (ref. 7711160878 ), from the RENAULT SPORT catalog, is an essential part to optimize clutch operation on your Renault Clio R3 equipped with the SADEV sequential gearbox. It ensures precise and reliable clutch engagement.
€107.70Price
Volant moteur assemblé Clio R3 Access et Maxi Référence: 7711162519
€1,061.60Price
Optimize your transmission's longevity with this genuine Renault differential shim set , essential for precise differential play adjustment . Designed specifically for the Renault Clio 3 RS gearbox, these precision thrust washers allow you to adjust the bearing preload within the gearbox casing . By using these OEM...
€26.22Price
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Douille guide butée Clio 2 RS Boite JC5 130
Attention pour les JC5 130, le joint de carter n'est pas intégré à la butée, vous le trouverez en produit associé en bas de page.
€13.75Price
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Douille guide butée fournie avec le joint.
Attention 2 montages sont possibles, verifier le montage actuel.
€52.86Price
HELIX MOTORSPORT 5-Paddle Cushioned Clutch Disc for Renault MEGANE 2 RS
High-performance clutch disc from HELIX MOTORSPORT, 5-paddle cushioned. Optimize your MEGANE 2 RS transmission. Discover the compatible mechanism at the bottom of the page.
€531.26Price