wolf-tooth-components-25mm-long-b-screw-for-adapting-old-deraileurs-when-using-a-gc-cog
wolf-tooth-components-25mm-long-b-screw-for-adapting-old-deraileurs-when-using-a-gc-cog, Looking to get a little extra distance so that your derailleur clears your 40 or 42 tooth cog? Look no further.M4 x 24mm screw for that extra little push