CLOSEOUT: Backbone Gen. 1 Wheelset, 27.5", Astral Approach hubs

The original Backbone, this first generation wheelset hearkens back to 27.5's early days as snappy, xc-oriented mountain bike wheels designed to maximize the smaller wheel size's fast acceleration and quick spinning on climbs. While we have since replaced it with a burlier 32mm internal enduro-style counterpart, a handful of these OG offerings lingered in the warehouse. With today's emphasis on big, fast-rolling tires for gravel riding, the application for this light, quick, 30mm wheelset has again increased. Grab a set today at a killer price and use them as it suits you - be that a fast and lively mountain bike or a cushy gravel/adventure bike. 

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 at a nominal 28 gram weight sacrifice.

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

Build Specifications:

Astral Approach Hub Build

• 27.5" Alloy - ASYM, tubeless ready
• Rim Depth: 20mm Clincher
• Rim Width: [ex] 34mm, [in] 30mm
• Weight: 1585g
• 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