Reserve Carbon 37 Wheels

The widest range of choices.

Plus-curious, but not willing to commit to an ultra-wide rim that’ll square off the swathe of 2.6 tires popping out of molds around the world? The new Reserve 37’s width (37mm internal) is optimized for tires from 2.5 to 2.8 inches wide, and will still support a 3.0 nicely.

We tested a bunch of rim widths before committing to 37mm for our widest rim offering, and we feel it’s the best balance of support for wide-but-traditional tires (Maxxis’ 2.5 WT models, for instance), while also offering enough volume to let 2.8-3.0 tires solve the traction+volume=shred equation.

With more tire choices becoming available it’s a great time to have a rubber fetish. From the traditional widths and treads to the big meat of Plus size – and now the new Goldilock’s porridge of 2.6-inch tires that offer more volume and traction with less of the squirm of the widest ones – the Reserve 37 means you don’t need to swap out rims or wheels to try new things.

*New* Now Available as a 29er

This version of the 37 has the same 37mm internal width as the 27.5 version, and the same bead profile and reinforced spoke holes (not to mention lifetime warranty) as the other Reserves—it’s just grown in diameter. 

If a 2.4/2.5in tire just isn’t quite enough for your big-wheel thrashing, mount a 2.6 or 2.8 to the 37 29 and take the traction+volume equation up another notch.

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Up close on the Reserve 37 29" rims.

Reserve 37 27.5" wheels handbuilt here in Santa Cruz, CA.