Whether your primary is stock or wide open

low friction loss SAE 85w viscosity eliminates clutch drag and slipping

Compression Ratio: 9:1

This listing is for fork tubes only

Whether you're looking to enhance the aesthetics of your Sportster or improve its performance

Clutch Shell 1941-1964 Harley-Davidson Big Twins - OEM #37703-41 Brand_SRM Engineering Whether your primary is stockFits 1941 1964 Harley Davidson Big Twin kick start only models Replaces Harley Davidson OEM# 37703 41 Cycle Standard offers this quality replacement Clutch Shell for 1941 1964 Harley Davidson Big Twins. Available without starter ring gear for early kickstart models 1941 thru 1964 or if later models have been changed to open primary belt drive, as well as for the 1965 thru 1985 electric start models with starter ring gear (except models with diaphragm