Here is information to help you with your JR clutch spring options.
*NOTE: BLACK AND BROWN ARE DISCONTINUED*
JR Pimary Clutch Spring Chart
Related Products
JR Clutch Weights
SKU #SNO-A-10-XX
Clutch Springs
SKU #K0XX
JR TT10 Primary Clutch Weights
SKU #SNO-A-TT-10
JR Belt Drive Clutch Setup
SKU #JRBD34