Curve Cycling
Kevin of Steel Frameset
Size Guide
Size Guide
Take a look at our geometry page for all our frames to see what size will be best for you.
Shipping
Shipping
Shipping for Framesets, Complete Bikes, Forks, Wheelsets, Bars and Rocket Pooches is included in the sales price.
All other products are subject to shipping charges calculated at checkout. See our Shipping Policy for further details.
Italian Steel -
The main frame triangle is comprised of Columbus Zona Italian-made double-butted tubing. Zona allows for the ideal compromise between weight, strength and life of the frame.
Two Bikes In One-
The GXR's carbon fork, the Ride 400, has clearance for wheel options based on your riding style. For example, Kevin can run either 700c wheels with 32–45 mm tyres, best suited for commuting, gravel, and cyclocross, or if you’re looking to tackle some rougher terrain with more traction, use 650b (27.5”) wheels fitted with 1.8–2.2” tyres. Curve has the above wheel options in both carbon and aluminium available.
No Weird Flex -
The custom 4130 steel yoke design allows Kevin to run some super wide gravel tyres in two wheel sizes and also stiffens the BB area to avoid frame flex under load.
Ready For Adventure -
Kevin comes equipped with rear rack mounts, fender mounts, and 3 x bidon mounts; and can run either a 1x or 2x drivetrain. Kevin is ready for single or multi-day bikepacking adventures due to extra tyre clearance, a longer wheelbase, and a more stable platform.
Frame | Curve GXR - Columbus Zona & 4130 chromoly |
Fork | Ride 400 Carbon Fork |
Headset | Curve 44 mm semi-internal |
Seatclamp | Curve 29.8 Black Alloy |
Axles | Bolt Up 12 x 100 Front, 12 x 142 Rear |
Other | Curve Cocky head badge & spare derailleur hanger |




If you are building your Curve frameset with a self-supplied groupset, please see the specification guide below to ensure the necessaey parts are sufficiently compatible with our framesets.
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Frameset Specifications for Self-Supplied Groupsets

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