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Product Description The Shimano SLX FC-M7120-1 Crank - Higher safety and efficiency Shimano's SLX FC-M7120 12-speed crank produces a chainline of 55mm when ridden with a single chainring. This is 3 mm further out than with FC-M7100-1, which makes the crank is especially suitable for frames with 148 mm over locknut dimension. A direct-mount system is used, which significantly speeds up the process of changing the chainring. In combination with a single chainring that has Shimano Dynamic Chain Engagement+ technology (not included), good chain retention, efficiency and low noise are guaranteed. Hollow-forged crank arms reduce weight while providing the most efficient power transmission. The FC-M7120 crank was designed for leisure and training, not so much for racing. It can also be fitted with two chainrings, resulting in the model FC-M7120-B2 for a 51.8 mm chainline. Specifications:Application:All Mountain, Enduro, Cross CountryCompatibility:1x, 2xChainring Mount:Shimano Direct MountTechnical Information:Series:SLX M7100Crank Arm Material:aluminiumAxle Material:steelCrank Arm Length:165.0 mm, 170.0 mm, 175.0 mmChainline:55 mm (1x), 51.8 mm (2x)Q-Factor:178 mmAxle Diameter:24 mmCompatible BSA Shell Width:68 mm / 73 mmRecommended Bottom Bracket:BB-MT801 or BB-MT800-PA Press Fit Hollowtech II (not included)Recommended Chain:HG 12-speed (e.g. CN-M7100)Compatibility:MTB 12-speed: Rear Over Locknut Dimension: quick release: 141 mmthru-axle: 148 mmShifter:SL-M9100, SL-M8100, SL-M7100 (with 2x)Front Derailleur:FD-M9100, FD-M8100, FD-M7100 (with 2x)Bottom Bracket:SM-BB93, SM-BB80, BB-MT801, BB-MT800, SM-BB52, BB-MT501, BB-MT500, SM-BB94-41A, BB-MT800-PA, BB-MT500-PAChainrings: 1x: SM-CRM752x: Y-0JB26000, Y-0JB98010Chain:CN-M9100, CN-M8100, CN-M7100, CN-M6100-12Features:smoother riding on rough terrainstiff, lightweight design increases fun riding on trailshollow forged crank arms maximise power transfer without increasing weightlighter gear ratios than competition cranksetsanodised crank armsTechnology:Hollowtech II Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life. Manufacturer Numbers:165.0 mm:I-FCM71201AXXT170.0 mm:I-FCM71201CXXT175.0 mm:I-FCM71201EXXTContents:1 x Shimano SLX FC-M7120-1 crank1 x Shimano lockring1 x Shimano crank bolt2 x spacersOrder Together:SM-CRM75 Single Chainrings (30, 32, 34 T)TL-FC41 Chainring Assembly Tool Weight: black | 175,0 mm | without chainring: 641 g (mit 30 Z, nicht im Lieferumfang) Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com