Description
SRAM X1 Eagle Crankset 11 12 Speed 170mm 34T Direct Mount GXP model opticc2 Ibis Hakkalugi Disc 53cm Bike Ibis Hakkalugi Disc 53cm Bike 2014 you can get pro level of gearing starting with the 11 tooth cog and going up to the 17 tooth in one tooth increments