The Absolute Black Shimano XTR 32T Oval MTB Chain Ring is a premium oval chainring which means you will climb easier and achieve better power transfer taking your riding to another level They improve on stock Shimano chainrings by having builtin M7 threaded standoffs to provide the ideal 1X chainline which gives a 1mm improvement You can only use original Shimano M7 bolts with these chainringsthey come with crank Key Features For mountain bike use Shimano XTR M9000 and M9020 cranksets 9 10 11 and 12spd Eagle compatible 32 Teeth Perfect 49mm chainline 4 x 96mm BCD Asymmetrical design mounting Original M7 bolts only CNC machined 7075 Txxx Aluminium 53g weight

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