
For more than 25 years Rivera Engineering and Primo Belt Drives have been providing our many discriminating customers world-wide with the best of "Proven Performance Products" in the Rivera/Primo tradition. Rivera Engineering's super-popular Pro-Clutch kits for the Big-Twins provides unprecedented performance potential in the most cost effective manner. Pro-Clutch upgrades are available for virtually any 1936-to1998 Harley-Davidson Big-Twin model motorcycle, and a Sportster application is in the works. Primo Belt Drives Brute IV 3-inch electric-start open belt-drive system continues to be the most popular way to convert from chain primary to open belt drive. Now you can run an electric start 3" open belt-drive on your late model Evo Big-Twin with bolt-on convenience! Intended for use with the Brute IV open belt drive is our solid billet-aluminum Motor Plate Assembly (PP-402) which provides necessary support between the motor and the transmission (assuming the duties of the stock inner primary). The Brute IV is available for Softail & Dyna as this is written! The Brute
![]() |
Rivera Primo 3 inch Open Belt Drive Primary Brute IV Kit for Evo and Twin Cam Harley Davidson Softail, Chopper and Custom Motorcycle in Polished finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo 3.5 inch Open Belt Drive Primary Transmission Brute V Kit for Evo and Twin Cam Harley Davidson Softail, Chopper and Custom Motorcycle in Polished finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Brute Force 3.5in Open Belt Drive Primary Transmission Kit for 1990-Up EVO, TC88 Harley Davidson Softail, Chopper and Custom Motorcycle |
![]() |
Rivera Primo Pro - Clutch for Harley Davidson 1936 to 2005 Evo and Twin Cam Big Twin, 1991 up Sportster and Buell MotorcycleSupercharge your ride with a slicker, crisper and stronger clutch
Select your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Billet Flame Guard For Brute IV Open Belt Drive Primary Transmission in polished finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Aluminum Half Guard For Brute IV and V Open Belt Drive Primary Transmission in polished and chrome finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Aluminum Full Guard For Brute IV Open Belt Drive Primary Transmission in Polished or Chrome finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Aluminum Flamed Half Guard For Brute IV & V Open Belt Drive Primary Transmission in Polished or Chrome finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Slotted Billet Aluminum Guard For Brute IV Open Belt Drive PrimarySelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Solid Billet Aluminum Guard For Brute IV Open Belt Drive PrimarySelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Billet Smooth Two Piece Pulley Cover Kit For Brute IV and V Open Belt Drive Primary Transmission in Chrome finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
![]() |
Rivera Primo Belt Drives 1in Primary Transmission Offset Spacer Kit in polished finish |
![]() |
Rivera Primo Chrome Alternator Rotor Cover for Open Belt Drive Primary Transmission |
![]() |
Rivera Primo Brute IV Extreme 3in Open Belt Drive Primary Transmission with Pro Clutch for 1990 to 2006 Harley-Davidson Softail, Chopper and Custom Motorcycle in Polished finishSelect your choice from the drop down list below and click 'Check Price'. See Also: |
Harley Custom USA
Harley Custom India
Harley Custom China
Europe Helplines
Tel: 0044 1424 830542
Fax: 0044 1424 830532
Elsewhere in World
(Add UK Prefix)
Tel: + 1424 830542
Fax: + 1424 830532