The Daily Grind Drive Side Hub Guard V3 Description: The Daily Grind Drive Side Hub Guard V3 is a refined version of the original and was designed to protect the driver, chain, hub flange and spokes from grind abuse. Made from CNC machined 4140 chromoly that's heat-treated for maximum strength and made to fit most 14mm cassette hubs by sliding over existing drive side hardware. Note: Universal type hub guards will not work with most 14mm female axle hubs that use 3/8" axle bolts. However, if the hub uses 14mm female axle bolts, it should work fine.