JIMS, Powerglide Steady Roll tappet. +.005" O.D. - 99-17(NU)Twin Cam; 17-21 M8; 00-21 XL; 08-12(NU)XR1200; 00-10(NU)Buell XB 939605 This provides more power

This provides more power

make sure a special heat resistant glue is used

S&S chr/moly replacement piston ring set

Machined from the solid block

Kit includes hardware for saddlebags

JIMS, Powerglide Steady Roll tappet. +.005" O.D. - 99-17(NU)Twin Cam; 17-21 M8; 00-21 XL; 08-12(NU)XR1200; 00-10(NU)Buell XB 939605 This provides more powerThis is the Powerglide with a failsafe solid bronze alloy bushing instead of a regular roller bearing. No other differences excist between the regular Powerglide and the Powerglide Steady Roll tappets. Full bearing contact provides more stability, longer life and quieter operation due to the tighter tolerances this bushing design allows. The major drawback of a worn needle bearing roller is they will eventually break, spilling steel needles throughout