The Force XG1270 cassettes are designed and optimized for the next generation of electronic shiftingX-Range gearing gives you more range and a smoother gear progression, so youâre always in the right gear10-tooth start helps provide a wider gearing rangeAvailable in 10-28T, 10-30T, 10-33T or 10-36TFull Pin construction for durability and light weightNickel chrome plating for quiet and durabilityDesigned to work with XDR driver bodies10-30t12sp10,11,12,13,14,15,17,19,21,24,27,30SilverForceXDRUPC/EAN/GTIN: 710845915239