Description
Novatec D041SB D042SB Bicycle Cassette Hub Disc Brake Support
A freehub is a type of bicycle hub that incorporates a ratcheting mechanism, and the name freehub is a registered trademark of Shimano. A set of sprockets (called a “cassette”) are mounted onto a splined shaft of the freehub to engage the chain. The ratcheting mechanism is a part of the hub, in contrast to a freewheel, an older technology, which contains both the sprockets and a ratcheting mechanism in a single unit separate from the hub. In many high-end and midrange bicycles, freehubs have replaced freewheel systems.
Specification:
- Hub model: Novatec D041SB/D042SB
- Sealed bearings:Â front 2 / rear 4
- O.L.D.:Â front 100mm / rear 135mm
- Weight:Â front 213g / rear 491g-ss or 414g-sa
- Spoke holes: 24H / 28H / 32H / 36H
- Color: black / red
- Cassette body: LS (light steel) or AL (aluminum alloy) (shim. 8/9/10s)
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