

SADEV 56x11 Crown Wheel - Renault Sport Clio 2 Gr.N ST66
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Do not let an approximate transmission compromise your stage times. This 56-tooth crown wheel for 11-tooth shafts is an official Renault Sport component, engineered by SADEV specifically for the Renault Clio 2 Group N equipped with the ST66 gearbox. As the exclusive distributor of SADEV parts for the Renault competition range, Optimiz Access guarantees a genuine part essential for maintaining the reliability and performance of your sequential gearbox. Without this machining precision, you risk premature gear wear and a fatal loss of traction during competition.
The centerpiece of your SADEV ST66 gearbox: 56-tooth crown wheel
In motorsport, particularly in rallying with a Clio 2 RS Gr.N, the drivetrain is subjected to extreme stress. Using a wear part beyond its limits or opting for a lower-quality alternative means exposing yourself to a major mechanical failure mid-race. The 56-tooth crown wheel (Ref: 7711129544 / F1903201) is the element that ensures optimal power transfer to your wheels.
Why choose genuine SADEV / Renault Sport?
Failing to install this official SADEV crown wheel means risking a break in the kinematic chain. The consequences are immediate: retirement from the race, collateral damage to the 11-tooth shaft, and exponentially higher engine/gearbox overhaul costs. This part benefits from a specific heat treatment and tooth precision that only SADEV manufacturing can offer for the Renault Sport catalog.
Optimiz Access: Your Exclusive SADEV Partner
Finding authentic competition parts can be complex. Optimiz Access has been chosen as the exclusive distributor of SADEV spare parts for a wide range of racing vehicles:
- Renault Clio 2 Gr N and Clio 2 X65 Cup
- Renault Twingo R2
- Renault Clio 3 X85 Cup
- Renault Megane N4
- Renault Megane V6 Trophy and Clio V6 Trophy
This exclusivity is proof of our technical expertise and our commitment to enthusiasts and professionals in the customization and maintenance of performance cars.
Technical Specifications and Fitment
This crown wheel is designed for fitment on an 11-tooth shaft. It meets the strict requirements of Group N homologation. Its installation requires specific expertise. Based in Northern France (near Lille, Arras, and Valenciennes), our technicians can handle your gearbox maintenance in our workshops.
Logistics and Services
Because rally assistance cannot wait, we offer fast worldwide shipping. Don't risk missing your next start due to a missing part. For a complete overhaul, you will find specific bearings and gearbox oil in the complementary products section at the bottom of this page.













