Convertible to all axle types - end caps included Double Time four pawl internal mechanism Compatible with road or MTB cassettes Boost variants available 24, 28 or 32 spoke holes Includes spacers for 11sp applications RR 8-11s Cass 24H QR/12TA Aluminum Blk 6B 135mm/142mmUPC/EAN/GTIN: 710845784712