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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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Kit embrayage Twingo RS et R1
Véritable kit embrayage origine
€257.28Price
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
Roulement avant Clio 3 RS - Megane 3 RS - Megane 4 RS
€304.88Price
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Butée embrayage modifiée Megane N4
Référence: 7711167162
Prévoir 2 Raccords en produits associés
€749.71Price
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The AP RACING Clutch Mechanism (ref. 7711160633) is a high-performance part from the RENAULT SPORT catalog. Designed for the Renault Clio R3 and Renault Twingo R2 , it ensures precise and reliable power transmission for optimal sports driving.
€721.20Price
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Disque d'embrayage 4 patins Megane N4 Référence : 7711167634
A l'unité
€462.72Price
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The AP RACING 4-Paddle Clutch Disc (ref. 7711162981) is a high-performance part from the RENAULT SPORT catalog. Designed for the Renault Twingo R2 , it offers an ideal balance between performance and durability for competition.
€308.00Price
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Volant moteur usiné et équilibré Twingo R2, 7711162689
€525.31Price
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HELIX MOTORSPORT 4-Paddle Sprung Clutch Disc - Renault Clio 3 RS / X85 Cup
Optimize the transmission of your Renault Clio 3 RS or Clio 3 X85 Cup with this HELIX MOTORSPORT 4-paddle sprung clutch disc . Designed for increased performance and superior resistance, it is ideal for sporty use. Discover the...
€401.11Price
Volant moteur allégé pour Clio 2 Cup avec gestion Magneti Marelli Volant moteur pesant 3.2 Kgs
€470.96Price
En Stock
€118.56
Price
En Stock
€118.56
Price
Original RENAULT Hydraulic Clutch Release Bearing for Clio 3 RS & X85 Cup
Do not compromise the reliability and precision of your Renault Clio 3 RS 's clutch. This <span...
€118.56Price
Conduite Hydraulique D'embrayage pour Megane 3 RS. Pièce régulièrement changée lorsque vous avez un bruit d'embrayage meme au ralenti. Egalement appelé butée.
€148.46Price
Renault Mégane 3 RS Clutch Kit (Genuine)
Replace your worn clutch with this genuine Renault kit, designed specifically for the Mégane 3 RS (all versions). Ensures optimal transmission and durable performance. Essential for maintaining your sports vehicle's performance.
€277.74€396.77Regular price-30% offPrice
Lightened Flywheel TTV RACING - Clio 3 RS (4.4kgs)
Improved engine responsiveness for sharper accelerations.
Significant weight reduction for optimized performance on road and track.
€499.00Price
Prevent low-frequency cabin droning, structural wheel hub play, and the degradation of your steering accuracy under heavy cornering loads. The heavy-duty Front Wheel Hub Bearing for Clio 3 RS, Megane 3 RS, and Megane 4 RS secures the structural alignment of your front axle...
€123.42Price
Optimize the performance of your Clio 3 RS with the genuine Renault differential bearing on the large driveshaft side!
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€55.55Price
Roulement différentiel côté petit cardan Boite TL4 Clio 3 RS
€37.96Price
Roulement arbre secondaire côté 6ème Boite TL4 Clio 3 RS
€32.11Price
Original RENAULT secondary shaft bearing (clutch side) for TL4 type gearboxes fitted to Renault Clio 3 RS vehicles. An essential part for the proper functioning of your transmission. Discover other gearbox bearings in the related products section at the bottom of the page.
€60.40Price
Ensure your transmission's longevity with this genuine Renault needle cage for the 6th speed gear . Specifically designed for the TL4 gearbox of your Clio 3 RS , this essential engine component prevents whining noises and premature failure. Do not risk your gearbox integrity with...
€10.49Price
Transform your sports car's engine character with this TTV Racing lightweight flywheel . Specifically designed for the Renault Clio 2 RS (172 and 182), this high-performance steel flywheel weighs in at just 3.3 kgs , offering a drastic reduction in rotational mass compared to the original for lightning-fast...
€449.00Price
Do not risk a persistent transmission whine, severe internal gear mesh destruction, or a catastrophic input shaft snap under heavy loads. The premium Roulement arbre primaire côté 6ème boite TL4 Clio 3 RS is the critical factory-spec replacement bearing required to restore...
€29.71Price
Roulement arbre primaire côté embrayage boite TL4 Clio 3 RS
€28.99Price
Secure your transmission with this genuine Renault pinion fixing bolt . Essential for maintaining the secondary shaft on JC5 and JR5 type gearboxes, this component is critical for the reliability of your Renault Clio 2 RS or Twingo 2 RS . Do not take any risks with used...
€12.64Price
Récepteur d'embrayage Megane 2 RS tous modèles y compris R26R Son changement est préconisé lors de tout changement d'embrayage et même désaccouplement moteur/boite.
€168.20Price
Roulement d'arbre primaire (carter 5ème) Twingo RS et R1
€24.59Price
Roulement d'arbre secondaire (carter 5ème) Twingo RS et R1
et servant egalement en tant que
Roulement d'arbre primaire Clio 2 RS
€55.55Price
Embrayage Complet Origine Clio RS toutes motorisations
€282.54Price