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The Backbone is a bomber 32mm internal 27.5 trail mountain bike rim. We improve the stiffness, strength and longevity of a wheel by using an asymmetric (ASYM) rim design than improves spoke tension balance by up to 30%. On the trail, this translates to balanced handling you can rely on. With a 32mm internal width it’s perfect for wide trail tires.

Drilled for external nipples. Disc specific rims. 

All Astral rims are Tubeless Easy for tire installation that you can set up with a floor pump.

Custom builds available! Any hub, any spec, just contact us with your special project. We’ll make it happen.

    • 27.5" ASYM, Tubeless Clincher
    • Weight: 535g
    • Depth: 20mm
    • Width: Int - 32mm / Ext - 36.3mm
    • External nipples
    • ERD: 561.5mm
    • Spoke Bed Diameter: 559mm
    • Max Tension: 130kgf
    • Hole count options: 28 or 32
    • Tire size recommendation: 2.2" to 3.0"



 

The Backbone is a bomber 32mm internal 27.5 trail mountain bike rim. We improve the stiffness, strength and longevity of a wheel by using an asymmetric (ASYM) rim design than improves spoke tension balance by up to 30%. On the trail, this translates to balanced handling you can rely on. With a 32mm internal width it’s perfect for wide trail tires.

Drilled for external nipples. Disc specific rims. 

All Astral rims are Tubeless Easy for tire installation that you can set up with a floor pump.

Custom builds available! Any hub, any spec, just contact us with your special project. We’ll make it happen.

    • 27.5" ASYM, Tubeless Clincher
    • Weight: 535g
    • Depth: 20mm
    • Width: Int - 32mm / Ext - 36.3mm
    • External nipples
    • ERD: 561.5mm
    • Spoke Bed Diameter: 559mm
    • Max Tension: 130kgf
    • Hole count options: 28 or 32
    • Tire size recommendation: 2.2" to 3.0"

ASTRAL Backbone Rim, Alloy, 27.5"



Size



 

The Backbone is a bomber 32mm internal 27.5 trail mountain bike rim. We improve the stiffness, strength and longevity of a wheel by using an asymmetric (ASYM) rim design than improves spoke tension balance by up to 30%. On the trail, this translates to balanced handling you can rely on. With a 32mm internal width it’s perfect for wide trail tires.

Drilled for external nipples. Disc specific rims. 

All Astral rims are Tubeless Easy for tire installation that you can set up with a floor pump.

Custom builds available! Any hub, any spec, just contact us with your special project. We’ll make it happen.

    • 27.5" ASYM, Tubeless Clincher
    • Weight: 535g
    • Depth: 20mm
    • Width: Int - 32mm / Ext - 36.3mm
    • External nipples
    • ERD: 561.5mm
    • Spoke Bed Diameter: 559mm
    • Max Tension: 130kgf
    • Hole count options: 28 or 32
    • Tire size recommendation: 2.2" to 3.0"
  • AVT Works is our in house wheel building and service dept offering a full range of custom wheel builds and hub servicing.
  • Available with Chris King hubs in all 9 standard in stock colors plus any other hubs listed on our site including White Industries, Phil Wood, ONYX, Industry Nine and PAUL Components.
  • Available with rims from Astral, Velocity, Praxis, Knight Composites, BOYD, ENVE and more with Wheelsmith or SAPIM CX Ray spokes.
  • If you're looking for a hub / rim combination not listed here please contact us.
  • * Custom made products including AVT Works wheelsets can be returned post purchase subject to a 20% re-stocking fee. More info can be found in our returns policy.
Available For Pre Order.
Ships In Approx 1 Weeks.
Available For Pre Order.
Ships In Approx 1 Weeks.