Mrp wave chainringthe wave chainring is an evolution in narrowwide chainring designs the wider spacing ensures that mud is cleared more efficiently whilst still maintaining a tight grip on chain security featurescompatible with sram xx1 x01 x0 x9 2200 1400 and truvativ aka cranks non direct mountavailable in 28 42t even sizessingle ring 1x 8 9 10 or 11 speed drivetrainsmade from cnc 7075 aluminiumbuymrp componentsfrom chain reaction cycles the worlds largest online bike store