Backbone Carbon X Wheelset, 27.5", Astral Approach hubs

Regular price $1,999.00 Save $0.00
15 in stock

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

The Stage 1 mountain bike hubset is custom made for Astral Cycling to provide a reliable, strong and light wheelset option. With upgraded speed of engagement, great strength-to-weight ratio and easily serviceable parts, they’re a value-packed winner for any MTB condition.

All Astral Cycling wheels are hand-build in Eugene, Oregon and feature Tubeless Easy rims you can easily set up at home.

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:

Astral Approach Hub Build

  • 27.5" Carbon - Hookless, tubeless ready
    • Rim Depth: 25mm Clincher
    • Rim Width: [ex] 37mm, [in] 20mm
  • Weight: 1810g
  • Brake type: Disc brake, Center Lock
  • Spoke count/ lacing pattern:  28H/28H, 2x
  • Spoke type: Sapim Race, Round   
  • Hubs: Astral Approach made by White Industries
    • Hub body: CNC machined in Petaluma, California by White Industries
    • Bearing: Enduro precision steel
    • Front Axle Options: Boost (15mm,12mm)/15mm/12mm/9mm
    • Rear Axle Options: Boost 148mm, Boost 141mm QR/142mm/135mm
    • Freehub Options:  Shimano HG11, SRAM XDR, Shimano Micro Spline
    • Freehub Material: CNC machined, case hardened steel, electroless nickel plated
  • 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", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs
Backbone Carbon X Wheelset, 27.5", Astral Approach hubs