Backbone Carbon Wheelset, 27.5", Astral Approach hubs

The Backbone Carbon is a 28mm internal width mountain bike wheel, ready to work hard on the climbs and rip back down. A balance of precision steering, light weight and durability make this the perfect 27.5 inch mountain bike wheel for any occasion. 

Our Approach hubset is built for Astral Cycling by long-time partner White Industries. It includes the same internal mechanisms as their classic CLD hub, but features a bomber heat-treated steel freehub body rather than titanium.

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

*9mm conversion available on 15mm thru axle

Build Specifications:

Astral Approach Hub Build

• 27.5" Carbon - Hookless, tubeless ready
• Rim Depth: 30mm Clincher
• Rim Width: [ex] 33.5mm, [in] 28mm
• Weight: 1660g
• 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