TheShimano MT401 Centre Lock Disc Mount 12 Speed 32H Q/R FreeHub uses Micro Spline technology to enable the use of a 10T cassette sprocket, to be used in conjunction with Shimano 12-speed cassettes. This freehub body with quick pawl engagement provides perfect traction and instant power transfer. Shimano redesigned their freehubs with Micro Spline technology for the arrival of their 12-speed cassettes. They maintain the width of existing freehubs but allow for the addition of a 10-speed cog to your 12-speed drivetrain. Micro Spline freehub bodies have 23 smaller and equally spaced saw-tooth angled splines to limit cog damage. This also results in a more even load distribution, enabling them to...
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