Rivera Primo Primo Belt Drive Kits for Big Twin – Primary & Clutch

Primo belt drive kits are proven to be the best on the market. Years of research and development has made them the Number 1 manufacturer of primary belt drive systems for Harley-Davidson. They have produced the finest primary belt drive units for over 14 years, utilizing a manufacturer with 30 years experience in drive pulley engineering.

Features:
• Hard anodized pulleys for years of trouble free riding
• All front pulleys are drilled and tapped for easy removal
• All models with one piece aluminum rear pulleys have hardened clutch dogs secured with three steel rivets
• All bearing races for the Big Twin are made of a special chrome-moly carbonized steel with a minimum hardness on the C-Rockwell scale of 60 on the bearing surface
• Bearings have a tough core that resists cracking under vibration and load

All belt drive components sold as Primo products are manufactured in America. Ride with the best, ride with Primo.

Kits with 8mm pitch belts
Fits all Big Twin 1937-1984 with 4 Speed transmission (except models with factory rear belt drive). Available with 1 1/2"-2"-3" wide belts.

1 1/2" Belt Drive KitsCan be used with stock primary cover, Spline shaft 1955-1977 kick start

Belt drive kit HD 1200 closed

• Category: Primo Belt Drives