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The outer 48-tooth chainring features a 110mm Shimano Asymmetric BCD and is constructed from aluminum for durability
Injection STRIDE toe-flex technology allows for natural toe movement off-bike but remains stiff for pedaling (stiffness index 6
A single BOA Li2 closure system allows for precise adjustments on the fly
With pre-cut
Shimano, FC-M371, Crankset, 9 sp., 170mm, 22/32/44T, Square, 50mm, Black S The outer 48-tooth chainring featuresThe Shimano Altus FC M371 is a reliable 9 speed triple crankset designed for smooth, precise shifting. Constructed from durable aluminum, it is compatible with super narrow HG 9 speed chains and standard 9 16" pedal spindles. Optimized for use with square taper bottom brackets (BB UN26 or BB UN55) with a 123mm spindle length. This versatile crankset is ideal for mountain or trekking bikes requiring a wide gear range. Quick Facts Feature Specification
