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       CranksetShimano FC-M970 "XTR"9-speedHollow aluminumMTBCarbon/titanium chaingringsWith Hollowtech II BBTriple chainring180mm crankarms22/32/44t1/2 x 3/32"2-piece4 bolt spiderGray/silver770gm Carbon-composite reinforced titanium middle chainring and nickel-plated, double anodized outer chainring for increased durability with Hyperdrive pin/ramp chainring design for shifting performance  |