Topeak Tubi Master X Repair Kit Black CheckoutSpec= Sold Each HOLLOWTECH II hollow forged crank maximizes HOLLOWTECH II hollow forged crank maximizes power transfer while limiting weight Color Black Flange Diameter Left 46 Skewer Included No Rear Axle 12mm Thru x 142mm Flange Diameter Right 46 Cassette Body Type Shimano SRAM 11 Speed Road Cassette Body Type Shimano SRAM 8 9 10 Speed Center to Flange Left 33 Bearing Type Sealed Cartridge Weight 267 Center to Flange Right 20 margin right:5% A micro sized tubeless tire repair and inflation kit featuring an advanced 2 in 1 CO2 injector head that repairs a puncture and inflates the tubeless tire in one step with massive air or can simply be used as a traditional CO2 inflator via the valve stem