Replacement freehub for Giant SLR 1 road wheels, model year 2021 onwards. This kit contains everything to replace, or convert to, a Shimano 11/12 speed and SRAM 11 Speed freehub. This freehub will only fit wheels with a hookless rim design featuring a ratchet engagement freehub. If your current wheel has a hooked rim and a freehub with three pawl engagement then please order the part number 'HBDT4188'.Please contact us with your Giant's frame number to verify this is the correct part
