Grav Al. 650b

Alloy Gravel Goodness

Reliable, lightweight, off-road PARTY WHEELS. Perfectly paired with the Curve GXR - aka Kevin - for off-road adventures! 

Curve Grav AL. 650B Alloy Wheelset

Curve Kevin 650B 27.5 gravel bike

Grav Al

Size 650B (27.5)
Specification 28 Hole Only
23mm Wide (Internal)
28mm Wide (External)
23mm Depth
ERD: 557 mm
Tubeless Ready
Hub DT Swiss 350 CL SP 28H
XD Driver Only
Spoke Sapim Sprint aero-bladed
Nipples Brass
Other Info Max Pressure (PSI): 120
Max Rider Weight: 120kg
Wheelset Weight: 1730 g


What tyres can I run? Any 650b 47–55mm (1.8–2.2") tyres – as long there is enough clearance in your frame/fork! We recommend you get your Grav AL.s set up tubeless, but you can still use tubes if you like.
Can I get a different axle configuration? Yes, alternative end caps (such as 15mm front) are available as an aftermarket purchase. Get in touch if you’re unsure of your configuration.
Can I customise the build? Grav AL.s are only available as complete wheelsets. Get in touch for dynamo hub options.
Why 28h? For most off-road applications, 28 spokes and rims offer the best strength vs weight application.

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