39MM AND 49MM PRELOAD FORK ADJUSTERS  39MM Fits: 87-94 FXR, 91-05 FXDL and FXD, and 88-up XL models. Will not fit, 1200S, and 00-05 FXDX/FXDXT  49MM Fits: 06-Up FXD/FXDWG and 02-Up V-Rod models with 49mm forks.      These adjusters will replace your stock fork caps and allow you to fine tune your front suspension, with almost an inch of preload adjustment  Easily dial in your front-end preload without having to remove the stock caps and cutting spaces, with a turn of the adjuster, up or down  CNC machined out of 6061 aluminum  Available in black anodized finish or raw machined finish  Comes with O-rings, and ready to install  Made in the U.S.A.