SHIMANO FC-T551 Crankset

Based on the premium SHIMANO DEORE XT and DEORE LX trekking product line, the offers 3x10 speed gearing and uses an outboard, 24mm bb interface. It includes an integrated chain guard. Features: - 2-piece construction for accurate chain line - HG-X chain and specific designed teeth - Chaincase compatible - Simply and sturdy design - Integrated appearance of chain guard 2-piece rigid construction of crank Specifications: - Hyperdrive SG-X chainrings - Chainline: 50mm - Rear speeds: 10 - Compatible chain: HG-X 10-speed - Chain line (mm): 50 - P.C.D. (mm): 104/64 - Spider/gear arms: 4 - Chainring combination: 44-32-24T, 48-36-26T - Q-factor (mm): 181.1 - Crank arm length (mm)|170: Yes - Crank arm length (mm)|175: Yes - Optional chain guard|With chain guard: Yes - Optional chain guard|Without chain/bash guard: Yes - 2-PIECE Crankset: Yes - Compatible bottom bracket type|Outboard: Yes - Recommended bottom bracket|Threaded (normal): BB-MT501 - Recommended bottom bracket|Threaded (chain case): BB-MT501 - Threaded bottom bracket shell width (mm)|68: Yes - Threaded bottom bracket shell width (mm)|73: Yes - Chain case compatible: Yes - Stainless chain guard fixing screw: Yes - Crank fixing screw included: Yes Technology: Hyperdrive System: - Integrated design of SG-X chainrings, Wide Link front derailleur and HG chain. Components work together to improve chain control to provide precise and reliable front derailleur shifting that is especially beneficial in severe off-road riding conditions. HG-X Chain: - Further evolution of shifting performance. A directional mountain bike specific 10-speed HG-X chain means smoother shifts, lighter weight and greater overall performance. HG-X directional chain: Outer side is optimized for front shifting and inner side is optimized for rear shifting. 2-piece crank set: - Integrated crank arm and bottom bracket: Increased rigidity with less weight - Wider bearing positioning: Rigidity is enhanced and pedaling force is efficiently transmitted - Precision Bearings: Low maintenance and simplified installation