Crown wheel and pinion set (17x55) SADEV / Renault Clio 2 CUP / ST75-14

Product introduction

This SADEV 15x58 crown wheel and pinion set is a new part designed for the SADEV ST75-14 sequential gearbox, as fitted to the Renault Clio 3 CUP. Engineered for competitive use, it meets the standards for reliability, precision, and durability required for a Renault Sport transmission operated under intensive conditions.

Purpose of the part

The crown gear is part of the final drive (bevel gear set) within the gearbox. Working in conjunction with the pinion gear, it transmits power from the gearbox output to the differential, while also determining the final drive ratio. The 15x58 ratio directly influences acceleration, top speed, and the vehicle's overall handling characteristics, depending on the requirements of the specific circuit and the vehicle's setup.

Symptoms or consequences of a worn or defective part

• Abnormal noises originating from the transmission, particularly under load or during deceleration.
• Excessive play or visible wear on the gear teeth.
• Vibrations or erratic operation of the gearbox.
• Risk of damage to the pinion gear, differential, or other internal components.
• Loss of performance and reduced reliability during competitive use.

Benefits of replacement

• Restores a reliable and precise transmission.
• Preserves the performance of the SADEV ST75-14 sequential gearbox.
• Maintains a final drive ratio suited to the Renault Clio 3 CUP.
• Reduces the risk of mechanical failure caused by a worn crown gear.
• Meets the demands of motorsport and intensive track use.

Specifications

• Brand: SADEV.
• Product: Crown gear.
• Ratio: 15x58.
• Application: SADEV ST75-14 sequential gearbox.
• Condition: new product.
• SADEV Part Number: F9001012.
• Renault Sport reference: 01 09 001 012.
• Part intended for competition use.

Vehicle compatibility

• Renault Clio 3 CUP equipped with a SADEV ST75-14 sequential gearbox.

Conclusion

This SADEV 15x58 crown wheel and pinion set is an essential component for maintaining the reliability, performance, and proper operation of the sequential transmission in your Renault Clio 3 CUP.