4th Gear Mainshaft

• 1216-0060
• Fits: Rivera Primo Powerdrive Left Side Drive Transmissions
• Designed to fit, engineered to last. Rivera Primo performance and aftermarket parts for Harley-Davidson motorcycles
• Rivera Primo – American made pro clutches, belt drives and other custom parts for V-Twin motorcycles Whatever it takes to keep your V-Twin bike on the road!