Rivera's Open Belt Primary Drive slims down Harley tourers

Publish Date: 
May 8, 2014
By Bruce Steever

WHITTIER, Calif. – Harley-Davidson prides itself as a maker of heavyweight motorcycles, but that doesn’t mean the bike can’t benefit from some slimming down.

Rivera Primo offers a range of accessories for Harleys, but if you’re looking to shave weight and bulk from a 2007 or later tourer, Primo’s new Open Belt Primary Drive is a consideration.

Designed as narrow as possible to fit as a bolt-on for touring models with floorboards, the Primo Brute IV Extreme open drive comes complete with a 3/8-in.-thick billet aluminum outer guard and the firm’s Rivera Pro Clutch (with the option to mount on a Rivera TPP Variable Pressure Clutch Assist for built, high-output motors). Once mounted, the Brute IV reportedly shaves a full two inches off the width of the motor.

The Primo belt drive utilizes a high performance, severe duty 8mm drive belt (rated for over 150 hp) riding on Primo’s forged 6061 aluminum pulleys machined to exacting specifications on gear shapers located in Rivera Primo’s Southern California manufacturing plant.

The motorplate is machined from a solid block of 6061 billet aluminum and includes the heel/toe shifter shaft support (which unscrews from the motorplate for applications without floorboards). The outer guard is intricately carved from billet aluminum and then show-quality polished.

Rivera Primo’s open primary belt drive is also available for 1990 through 2006, with prices for the system starting around $1,800 for older machines, with the newer touring line retailing around $2,700.