The SHIMANO DEORE XT FC-M8100-1 crank features an entirely new construction, using direct mount chainrings, special gear tooth profile for improved chain retention, and a 172mm Q-factor. FEATURE ~ Special MTB gear teeth profile improves chain engagement and retention ~ Hollow forged crank maximizes power transfer while limiting weight BENEFIT ~ Superior chain retention ~ Rigid and lightweight design for aggressive trail riding ~ Q-factor: 172 mm ~ Chainline: 52 mm ~ Weight: 608 g (28T), 622 g (30T), 620 g (32T), 633 g (34T), 651 g (36T) PRODUCT SPECIFICATIONS MODEL NO : FC-M8100-1 SERIES : SHIMANO DEORE XT M8100 Series Color : Series color, - Chain line (mm) : 52 Chain ring combination : 28T, 30T, 32T, 34T, 36T Compatible BB type : Outboard Compatible chain : HG 12-speed Crank Arm Length : 165 mm, 170 mm, 175 mm, 180 mm Crank fixing bolt included : ✔ Gear arms : 4 arm HOLLOWTECH II : ✔ Optional Chain Guard : Without chain/bash guard P.C.D. (mm) : Direct Rear speeds : 12 Recommended BB_Pressfit : BB-MT800-PA Recommended BB_Threaded (normal) : BB-MT800 Threaded BB Shell Width : 68 mm, 73 mm Q-factor (mm) : 172 Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings. ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER