Bitubo front fork upgrade kit for all XB models with 41mm front fork. Complete set.
XB 41mm. fork upgrade kit The kit includes rebound pistons, fully billet machined from Ergal Compression pistons, fully billet machined from Ergal Fluxed passage holes with centesimal tolerance Pyramid shims packs with an incremental progression curve High sliding O-rings and band seals Top quality Synthetic Oil, with a very low viscosity coefficient, for perfect stability and highest performance. Fork springs are in Cr-Si alloy steel, with thermo and shot-peening treatment. Mounting instruction