The OneUp Rear Hub uses a 44-tooth ratchet drive for a simple, serviceable Boost wheel build. The machined 7075-T6 shell includes an integrated drive ring, while widely spaced cartridge bearings support the axle and help reduce side-loading.
The 44 engagement points give 8.2 degrees between pickup positions. The freehub is sold separately, so choose the OneUp XD/XDR, Micro Spline or HG body that matches your cassette. The ratchet and spring are OneUp-specific and are not interchangeable with DT Swiss parts.
Boost 12 x 148mm spacing; 28 or 32 J-bend spoke holes.
Manufacturer weight: 220g.
6902 hub bearings; tool-free end caps.
Includes the assembled rear hub, two 44T ratchets, ratchet spring, non-drive-side end cap, temporary drive-side dust cover and freehub grease.
Freehub and its drive-side end cap are separate purchases.
Flange pitch-circle diameters: left 52mm, right 48mm. Centre-to-flange distances: left 38mm, right 23mm.
Specifications
Spacing (mm)
12 x 148 Boost
Spoke holes
28, 32
Spokes
J-bend
Material
7075-T6 aluminium
Manufacturer weight (g)
220
Engagement points
44
Engagement (degrees)
8.2
Hub bearing
6902
Freehub included
No
Box contents
Assembled rear hub, Two 44T ratchets, Ratchet spring, Non-drive end cap, Disposable drive-side dust cover, Dumonde Pro X freehub grease
Two 44-tooth ratchets provide 44 engagement positions with 8.2 degrees of movement between them. OneUp uses its own ratchets and spring, so replacement parts need to match this hub.
Support the axle, reduce side-loading
The cartridge bearings sit widely apart to support the axle. Combined with the machined shell and integrated drive ring, the layout keeps the internal assembly compact and serviceable.
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