Shimano xtr fcm980 10 speed triple chainringshigh quality shimano xtr chainrings only compatible with the xtr fc m980 crankset 3x10 speed and cn m980 chain 10 speedspecificationsmaterial outer inner chainrings 7075 aluminumweight approx 100 gram 44 teethchainwheel number of teeth 24 32 42fitting for derailleur 3x10 speedbolt circle mm 10464mmcolor silverincluded in delivery one chainring without chainring screwsa 2 year warranty is offered with all shimano products from cha