Backbone Carbon X Wheelset, 27.5", Project321 hubs *Closeout*

Regular price $2,199.00 Sale price $1,499.00 Save $700.00
1 in stock

*Closeout. Project 321 hub. Boost thru axles, Micro Spline only.

The Backbone Carbon X is a 30mm internal 27.5 trail-slayer. Stiff, robust rims hold a line in any condition. The light-weight, smooth carbon-ride perfectly match the flickability inherent to smaller wheels. 

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 by people that care in Eugene, Oregon.

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" Carbon - Hookless, tubeless ready
    • Rim Depth: 25mm Carbon Clincher
    • Rim Width: [ex] 37mm, [in] 30mm
  • Weight:  1795g
  • Brake Type: Disc brake, 6 Bolt
  • Spoke count/ lacing pattern:  32H/32H, 3x
  • Spoke type: Sapim Race, Round
  • Hubset: Project 321, Boost 
    • Hub Body: CNC machined in Bend Oregon
    • Bearing: Precision Stainless
    • Front Axle : 15mm Boost (110mm)
    • Rear Axle : Boost (148mm) 
    • Freehub : 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 Carbon X Wheelset, 27.5", Project321 hubs *Closeout*
Backbone Carbon X Wheelset, 27.5", Project321 hubs *Closeout*
Backbone Carbon X Wheelset, 27.5", Project321 hubs *Closeout*
Backbone Carbon X Wheelset, 27.5", Project321 hubs *Closeout*
Backbone Carbon X Wheelset, 27.5", Project321 hubs *Closeout*