Rear Hub 28H

OneUp Rear Hub 28H

A light ratchet drive Boost rear hub. Two 44 tooth ratchets give 44 points of engagement, 8.2 degrees apart, and the drive ring is machined straight into the hub shell instead of being a separate threaded ring.

220g, with a fully machined 7075 aluminium body and ABEC 5 cartridge bearings spaced as wide as they'll go. 28 hole, and built for anything from XC racing to enduro.

The freehub is sold separately, so you pick the one that matches your cassette: SRAM XD/XDR, Shimano Microspline or Shimano HG. Not sure which you need? Talk to us and we'll check.

Colours: Black, Dark Blue, Dark Green, Orange, Purple, Red, Silver.

Key Features

• Boost 12 x 148mm
• 44 points of engagement, 8.2 degrees
• Drive ring machined into the hub shell
• 220g
• ABEC 5 cartridge bearings, spaced wide
• Silicone freehub seal
• Tool free end caps
• 2 year OneUp warranty

Specifications

• Spacing: 12 x 148mm Boost
• Hole count: 28h
• Weight: 220g
• Engagement: 44 points, 8.2 degrees (2 x 44T ratchets)
• Body: 7075-T6 aluminium, fully machined
• Disc mount: 6-bolt
• Bearings: 6902 hub, 6802 freehub, ABEC 5
• Spokes: J-bend
• PCD: Left 52mm, right 48mm
• Flange distance: Left 38mm, right 23mm
• Freehub: Sold separately. SRAM XD/XDR, Shimano Microspline or Shimano HG. XDR cassettes need their 1.85mm spacer removed
• Ratchets: OneUp ratchets and spring only. DT Swiss ratchets don't fit
• Service: About once a year, or every 3 months if ridden hard
• Grease: Dumonde Pro-X, packet included
• Warranty: 2 years, excluding bearing wear

In the Box

• Rear hub, assembled
• Dumonde Pro-X grease packet
• 2 x 44T ratchets
• Ratchet spring
• Non-drive side end cap
• Drive side dust cover (for shipping, throw away)

Specs can change without notice from OneUp.