Everything that's needed to mount these pegs is a 1/2" hole

spring spacing required

More power than stock cam

CORROSIVE RESISTANT ALLOY

without pump-up

BILTWELL MURDOCK 2"PULLBACK RISERS 8" Kickstart 4speed 1936-84 Everything that's needed to mountChrome plated. TUV approved. With 2" (5. 1cm) pullback. For 1" (25. 4mm) handlebars. Constructed from investment cast steel upper & threaded lower. Riser tubes are TIG welded seamless 4130 chromoly with 3mm thick tubing and 1 2 13 threaded mounting holes which will take stock riser bolts. Spacing is 3 1 2" (89mm), to fit most H D top triple trees. The top clamp bolt pattern will take stock H D speedo & tach brackets.