SRAM X1 Type 2.1 11sp Rear Der Medium Cage Blk MFPN=11.6218.030.270 Medium width medium padding thickness

Medium width medium padding thickness

Installs simply with one hand and is quick and easy to change between bikes

} Allows the use of a 7 speed Shimano cassette on an 8 or 9 speed Shimano cassette body

}Wheels Manufacturing BBright to Shimano Bottom Bracket with Angular Contact Bearings Black Cups

Surly OD Bottom Brackets

SRAM X1 Type 2.1 11sp Rear Der Medium Cage Blk MFPN=11.6218.030.270 Medium width medium padding thicknessSRAM X1 Rear Derailleur 11 Speed Medium Cage Black. The X1 group has all the important features of the high priced spread with a modest increase in weight. Wide tooth narrow tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly X Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Roller bearing clutch eliminates derailleur bounce and chain slap Cage Lock feature simplifies