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What's the difference between boost 110 and boost 148?


Asked by Kaia Kline on Nov 30, 2021 FAQ



Boost 148 adds 3mm of spacing on each side of the hub. But unlike the 3.5mm difference from 135mm to 142mm, Boost 148 sees an increase in flange spacing, not just axle endcap width. Boost 110 uses a 15mm thru axle and moves hub flanges outboard by 5mm when compared to 100mm hub standards.
Also,
The wider rear hub offers you a bigger choice when it comes to chainrings. And finally, Boost improves clearance on the forks and the rear. The compatibility of the Boost 148 rear wheels and crankset. As we’ve already mentioned, the Boost system alters the position of the cassette, which results in a change in the chainline.
Keeping this in consideration, Boost 110 uses a 15mm thru axle and moves hub flanges outboard by 5mm when compared to 100mm hub standards. This 5mm outboard movement affects the spoke bracing in the same way as the 3mm shift on 148mm rear hubs, increasing spoke angles and creating, "the stiffness of a 26" wheel" in the front as well.
In respect to this,
Boost 148….it is simply a new hub standard. A standard MTB rear hub comes with a 135mm wide axle. Just a few years ago, it gets wider to 142mm. Now, it goes even further for another 6mm extra wider.
Subsequently,
Boost 148 moves the rear hub flanges 3mm outboard on each side in order to improve the spoke bracing angle and increase wheel stiffness (click to enlarge).