This Triumph 18 Tooth transmission drive sprocket replaced OEM# 57-1917

heat treated and chrome plated bolts fit 1952-53 K models

Measures 3 3/4 inches long

they will hold up and continue looking good

39 mm Fork Preload Adjuster - Black Anodized Finish Brand_K&S Technologies Inc. This Triumph 18 Tooth transmissionThe Speed Merchant is proud to produce THE ORIGINAL 39mm Preload Fork Adjusters. The Speed Merchant has manufactured their 39mm Fork Adjusters for speed and beauty. CNC machined out from 6061 aluminum with precise craftsmanship, engineering and balance. With up to 7 8 adjustment, you will be able to rule the streets or run the canyons. Made in California, USA. See Additional Information below for fitment. These adjusters will replace your stock fork