Rivera Primo Pro ClutchRIVERA Primo’s Pro Clutch has been designed for use with big inch, high torque engines that cause the stock clutch to slip. The package has been created as a scalable product, which means that riders can start with a basic Pro Clutch and then, as the engine is tuned, change out the diaphragm spring to one of Rivera Primo’s higher performance springs. Further tuning would then provide the option to install a TPP Variable Pressure Clutch Assist from the company.
The TPP Variable Pressure Clutch Assist from Rivera Primo is a mini lock-up specifically manufactured for use with the Pro Clutch, and the company states it has been tested to hold in excess of 250hp.
A further upgrade option from Rivera Primo is a replacement clutch basket. Manufactured from aircraft quality aluminum forgings, the baskets are suited to severe duty performance and feature a hard anodized finish. The company has either belt drive or chain drive baskets with a Pro Clutch for all Big Twin applications from ’37-onward.
RIVERA PRIMO
www.riveraprimoinc.com