Backbone Carbon X Wheelset, 27.5", Astral Approach hubs

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