Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND

Regular price $1,199.00 Sale price $1,055.00 Save $144.00
11 in stock

***Minor cosmetic blemish on rim. Otherwise perfect, new condition. If you can find the blem you'll know you're as obsessive as we are. One set available.***

The Backbone is bombproof 32mm internal 27.5 trail wheelset mountain bike wheelset. We improve the stiffness, strength and longevity of a wheel by using an asymmetric (ASYM) rim design than improves spoke tension balance by up to 30%. On the trail, this translates to balanced handling you can rely on in even the ruggedest of terrain. With a 32mm internal width it’s perfect for wide trail tires. 

Made just over the mountains from us in Bend, Oregon, Project 321 hubs offer absurdly fast, 216-point engagement and light-yet-strong alloy free-hubs. We use their “loud” pawl system for rock-solid reliability.

All Astral wheels feature a Tubeless Easy rim profile for painless tire installation and are hand-built in Eugene Oregon by people that care.

Need a special build? We can do that. Contact us for dream-builds or rebuilds and we’ll make it happen. Services also available through dealers.

 Build Specifications:

Project 321 Hub Build

  • 27.5"  - ASYM, Tubeless ready
    • Rim Depth: 20mm Tubeless Clincher
    • Rim Width: [ex] 36mm, [in] 32mm
  • Weight:  1745g
  • Brake type: Disc brake, 6 bolt
  • Spoke count:  28/28
  • Spoke type: Sapim Race, Round
  • Hubset: Project 321, Boost 
    • Hub Body: 6-Bolt, CNC machined in Bend Oregon
    • Bearing: Precision Stainless
    • Front Axle Options: Boost (110mm)
    • Rear Axle Options: Boost (148mm) 
    • Freehub Options: Shimano HG 10 spd, SRAM XD or Shimano Micro Spline
    • Freehub Material: CNC Machined  Alloy, 216T high engagement, loud
  • Tire size recommendation: See chart in product images
  • Includes: Taped for tubeless, tubeless valves and Astral's Certainty 

Not finding the spec you need?
Consider building a custom wheelset with our Astral Custom Wheel Builder

Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND
Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND
Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND
Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND
Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND
Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND
Backbone Wheelset (27.5") Project321 Hubs - COSMETIC SECOND