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- Billet Aluminum Black Anadized Diaphragm Spring Retainer
- Fits: 11mm Narrow Open Belt Drive
- 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!