Shimano SLX 12-speed Crankset, FC-M7100-1, with or W/O BB-MT800 XT Bottom Bracket

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  • Regular price $329.95 CAD
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Shimano SLX 12s Crankset
FC-M7100-1: 30T / 32T / 34T
165mm / 170mm / 175mm length
With or without BB-MT800 XT Bottom Bracket 
(for 68mm or 73mm BB shells)
Average weight (w/o BB, 175mm): 634/631/646g (30/32/34T)

This new SLX 12 speed crankset is designed specifically for Shimano's newest 1x12 MTB drivetrains. Its all new, lightweight design features a direct mount chainring and comes in a variety of size options.

  • Direct mount system utilizes a spline and single nut to secure chainring to crank arm.
  • HOLLOWTECH II design reduces weight while maintaining appropriate stiffness for maximum power transfer.
  • DYNAMIC CHAIN ENGAGEMENT+ chainring teeth profiles designed specifically for MTB applications, whether cross-country, enduro or trail.
    • Superior chain retention properties and smoother pedaling feel result in less component wear and a more enjoyable ride.
    • Improved chain retention, even in the toughest terrain conditions. 
  • 2-piece design:
    • saves weight
    • increases stiffness and transmits pedaling force more efficiently
    • simplifies maintenance and installation. 

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FC-M7100-1
O.L.D. (mm): 142, 148
30T 1x chainring, 32T 1x chainring or 34T 1x chainring
165mm crank arms, 170mm crank arms or 175mm crank arms
Q-factor: 172mm
Chainline: 52mm
P.C.D.: N/A (Direct mount)

BB-MT800 XT Bottom Bracket (Optional)
Threaded

Compatible with 68/73mm bottom bracket shells
Sealed bearings

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Our thoughts:
Definitely not a crank option to be overlooked by trail riders and racers alike.

Keep in mind that your mileage may vary pairing this with a 135mm O.L.D. (i.e. a quick release skewer) rear hub. Officially, Shimano says this is compatible ONLY with 142mm and 148mm rear ends. It'll probably work fine with a 135mm freehub, it just might be a tiny bit noisier in some gears than one might expect... from the newest SLX drivetrain.

If you're looking for a wider (less MTB-race-specific) range of gears, consider the 2x-12s SLX front cranks (w/ 26T[removable] and 36T chainrings).

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USER MANUAL

INSTALLATION

COMPATIBILITY - Shimano Rear Drivetrain Products

COMPATIBILITY - Shimano Front Drivetrain Products