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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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Volant moteur assemblé Clio R3 Access et Maxi Référence: 7711162519
€1,061.60Price
- Pack
- Pack
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
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
Embrayage Helix 4 Patins Amortis Clio 2 X65 Cup
€374.59Price
Support connecteurs butée embrayage Megane N4 Référence: 7711167053
€50.42Price
Roulement de différentiel coté droit Megane 3 RS
€55.55Price
Vis CHC M7-20 cl : 12.9
Megane N4 Référence: 7711167165
€2.65Price
Roulement de différentiel coté gauche Megane 3 RS
€55.55Price
The precision of your SADEV Quickshift gear control depends on every detail! This Mechaninbus pin diameter 2 (P/N: 0701037 ) is an essential part to ensure the reliable retention of the reinforced rod half-shells on your Renault Clio 2 Gr N ( ST66 SADEV Gearbox). A faulty pin results in...
€0.24Price
Butée basse pédale embrayage Megane N4 Référence: 7711167574
€52.37Price
Rondelle onduflex Ø7X14-0 Megane N4
Référence: 7711167163
€0.20Price
Bride de maintien butée SADEV Megane N4
Référence: 7711167167
€36.01Price
Joint torique nitrile Ø 106 x 2,5 # pour ST75 14
Référence: 0201061
€2.40Price
Plaque support butée SADEV Megane N4
Référence: 7711167166
€109.75Price
Raccord M10X100 - 3/8"X24 FILETS pour butée AP Racing Megane N4
€17.81Price
Joint double lèvres sortie de cardan Twingo R2
Joint identique pour le coté gauche et droit
€21.77Price
MOTUL Multi DCTF is a Technosynthese® transmission fluid specially developed for dual-clutch transmissions (DCT) , including both wet and dry clutch systems. It is designed to provide suitable lubrication and protection for compatible dual-clutch gearboxes.
Using the correct DCT transmission fluid is essential to maintain the proper...
€16.00Price
Joint axe de commande et levier passage Clio 3 RS
€10.45Price
A vital part for the precision of your Quickshift ! This SADEV left half-ball joint (P/N: F0073023 ), or half-shell , is essential for maintaining zero-play on the shift linkage rod in the casing of your Renault Clio 2 Gr N's ST66 dog-ring gearbox . If this wear part shows any play, you will...
€32.75Price
Ensure a zero-play gear control system! This SADEV right half-ball joint (P/N: F0073024 ), or half-shell , is crucial for the precise retention and fluid pivoting of the shift linkage rod in the casing of your Renault Clio 2 Gr N's ST66 dog-ring gearbox . Wear on this part introduces detrimental...
€32.75Price
Ensure your instrumentation remains accurate with this genuine Renault 19-tooth speedometer drive gear . Essential for the JC5 gearbox and Sadev ST66 dog-engagement transmissions, this manufacturer-certified part guarantees reliable data feedback for your Renault Clio 2 RS or Group...
€10.67Price
Kit embrayage Twingo RS et R1
Véritable kit embrayage origine
€257.28Price
Don't let a worn or loose axle nut compromise the power delivery and safety of your Twingo RS , Twingo R1 , or Clio 2 RS . This genuine OEM axle nut is the essential replacement part to reliably secure your ground link and guarantee perfect transmission maintenance. By keeping an original part that...
€14.74Price
Do not risk getting stranded on the road or during a rally stage due to a failing clutch control system. This genuine Renault clutch master cylinder is the only manufacturer part that guarantees a perfect seal and optimal resistance to the high pressures endured by your sports car's hydraulic system. Specifically engineered for the Renault Twingo RS as well...
€165.96Price
Butée embrayage "série" Twingo RS et R1
Référence: 7711162660
€74.12€112.30Regular price-34% offPrice
Butée embrayage modifiée Megane N4
Référence: 7711167162
Prévoir 2 Raccords en produits associés
€749.71Price