Wolf Tooth 88mm BCD Revolution Bikes March 6, 2014 Wolftooth Drop Stop Rings Color: Black These chain rings fit the unique 88mm BCD used on Shimano XTR M985 race crank set. *** THIS CHAINRING WILL NOT FIT THE M980 TRAIL CRANK SET — PLEASE CONFIRM WHICH ONE YOU HAVE BEFORE ORDERING **** The chain line for these rings is 52mm. All chain rings feature our Drop-Stop tooth design and are made from 7075 Aluminum. Use a 10 or 11 speed chain. The only brand of chain we don’t recommend is Wippermann. *** Be sure to order a colorful set of Wolf Tooth chain ring bolts to go with you new ring! Order the 6mm (short) bolt+nut combo. *** Product weights: 30t – 44g, 32t – 55g, 34t – 60g, 36t – 70g, 38t – 83g For more information please contact your local dealer. Or us directly from our contact page.