Vocal drs mid bottom bracket upgrade kit blue 22mm
The vocal drs mid bottom bracket upgrade kit is an upgrade kit that allows you to turn your standard mid bb to feature the same as the drs by replacing your end spacers with the supplied spacers you can adjust the free ness of your cranks to spin whilst your feet are off the pedals available in 2 sizes for 19mm or 22mm bb sizes and in colours to match the drs bb red black blue silver green or purple