Deep Shock Mount Crown Nut - 17mm - 10mm - 21mm. These rear shocks control suspension movement and ride height, so eye spacing, bushing fit, spring rate, and overall length all matter.Replace this deep shock mount crown nut when the original shock/footrest hardware is rounded, rusty, missing, stretched, stripped, mixed up, or visually wrong for the restoration.Fitment / CompatibilityFits Yamaha: Yamaha TX650 1974 Yamaha XS650 (1975-81) Yamaha XS650S (1978-83) Product Details Shock / footrest hardware Fastener material/finish: 17mm / 10mm / 21mm Sold individually XS650Direct part number: 49-0715 Before Ordering Confirm thread diameter, pitch, length, head style, shoulder, finish, and quantity. Start the deep shock mount crown nut by hand and stop if the threads do not seat cleanly.
