SADEV 12/58 Final Drive Kit ST75 Gearbox Renault Clio 3 X85 Cup

What you lose by running with a worn or unsuitable final drive on your Clio Cup

The SADEV ST75 gearbox is the heart of the performance of the Renault Clio 3 X85 Cup. The 12/58 final drive is not just a part; it is the guarantee of your top speed and your lap times. Failing to replace a worn final drive or choosing a non-SADEV compliant part exposes you to major risks:

• A catastrophic mechanical failure: Wear on the teeth leads to play and vibrations which, under the stress of competition use and rapid gear changes, can cause the entire gearbox to break (casing, gears, differential).
• Loss of efficiency: Even without failure, excessive play causes a loss of power transmitted to the wheels and accelerated wear of the gears and bearings.
• Compromised reliability: Using generic or non-specified parts for the SADEV ST75 does not guarantee the longevity or resistance to the extreme loads of the F4R Cup engine.

The choice of SADEV Reliability distributed by Optimiz Access

This 12x58 final drive is designed and manufactured by SADEV Compétition, a world leader in racing transmission. It is specifically sized to optimize the engine's operating range of the Clio 3 Cup. Our customers' search intent is to find original SADEV parts, a 12/58 short final drive Clio 3 Cup, and a supplier of confidence for their racing gearboxes.

Optimiz Access: Your Distributor of SADEV Renault Sport Parts

Our commitment to motor racing is total. We have been selected by SADEV for the distribution of original parts intended for:

• Renault Clio 2 Group N
• Renault Clio 2 X65 Cup
• Renault Clio 3 X85 Cup (like this 12/58 final drive)
• Renault Mégane N4
• Twingo R2

By choosing Optimiz Access, you benefit from our expertise in sequential gearbox maintenance and the guarantee of an authentic SADEV part.

FAQ: Final Drive and SADEV ST75 Gearbox

Is the 12/58 final drive the shortest one for my Clio 3 Cup?

The 12/58 final drive is one of the most common and high-performing drives for the Clio 3 Cup on technical **rally** and **hill climb** courses. It offers an excellent compromise between acceleration and maximum speed. Other final drives exist, but this one is a reference for use in One-Make Cups with the SADEV ST75 gearbox.

Which other parts should I replace along with the 12/58 final drive?

When replacing the final drive, it is imperative to check and often replace the secondary shaft bearings as well as the crown wheel hardware (F1908059). Failure to do so exposes the gearbox to a risk of shaft misalignment or loosening. Find these complementary parts at the bottom of this page.

The Transmission Expertise by Optimiz Access

Since 2010, our company has been recognized for the customization and maintenance of sports vehicles. Our workshops near Lille and Cambrai are equipped for the assembly and precise adjustment of your SADEV sequential gearbox. Order your 12/58 short final drive and ensure **reliability** for your next season. We guarantee fast shipping of our **SADEV parts** worldwide.