The SHIMANO XTR FC-M9100-1 cranks have an entirely new construction and use direct mount chainrings, a special chainring tooth profile to improve chain retention, and a Q-factor of 162 mm.
The FC-M9100-1 uses a 52 mm chain line and can be converted between 1x and 2x, with chainrings of 30, 32, 34, 36, and 38D available. Crank arms of 165, 170, and 175 mm are available.
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Smoother riding even on rough terrain
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Special gear tooth profile designed for MTB
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Lighter and stiffer chainring, easily interchangeable thanks to direct mount and just one key
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Interchangeable between single and double chainring
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The crankset can be used as a common component
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Q-factor: 162 mm
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Chain line: 52 mm
