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Curve Cycling

AIR Kev Frameset

AIR Kev Frameset

Regular price $5,999.00 AUD
Regular price $0.00 AUD Sale price $5,999.00 AUD
Sale Contact Us for Info
Customers outside Australia are liable for import fees which can add 25-30% for EU and UK shipments (compared to Australian RRP).

Contact us for help finding the perfect size for you!

To purchase the AIR Kev bundle (AUD$6,799 inc. 10% GST) select both the carbon AIR post & carbon Walmer Bar below. Your full discount for these two items will appear on the shopping cart page.

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For info on availability, please contact,
call us on 03 9088 0274.

Alternatively, Enquire Now.

Size Guide

Take a look at our geometry page for all our frames to see what size will be best for you.


Free International Shipping for all Framesets, Complete Bikes, Forks, Wheelsets, Bars and Rocket Pooches is included in the sales price (*excludes Belgie DISC Ultegra)

All other products are subject to shipping charges calculated at checkout. See our Shipping Policy for further details.

Our Fastest Kev Yet

Introducing AIR Kev, the gravel-race version of our beloved GXR (aka Kevin). This is Curve's tribute to a trail-blazing hero, our most popular model; a revolutionary bike in the burgeoning modern gravel scene. AIR Kev was originally a project for the 2023 Handmade Bike Show Australia, but it quickly won the hearts of gravel fans across the globe, so we decided to bring it to life.

Custom Carbon Bonded Seat Tube

AIR Kev combines the best qualities of carbon and titanium to create a new standard for gravel riding in the Curve range.
The carbon seat tube is not just a striking design feature, in combination with the 3d printed titanium BB lug, it results in the stiff and responsive ride quality you'd expect from a top-end race-oriented frame.

The carbon seat tube is bonded to the bottom bracket shell with a super strong double-lap join. A tight tolerance 3D-printed titanium lug, and a carefully selected aerospace adhesive, makes this possible.
Our 3D-printed parts include sub-millimeter bond-gap control features. While such fine details are invisible on our finished frames, they result in class leading bond strengths.
Complete AIR Kev builds are finished with Curve's new carbon seat post with a custom 3D-printed titanium topper. This post weighs a respectable 190g without compromising performance.

A Sleek Gravel Race Bike

The AIR Kev frame features internal routing via the downtube, bottom bracket and full-length non-drive side chainstay. The brake hose has an uninterrupted path from front to rear for clean RH-rear or LH-rear brake controls. It is held in place by an unsung hero, a 3D-printed titanium cable guide hidden inside the bottom bracket shell, which secures the hose snugly without bottom bracket cup or crank spindle interference.
A single-sided yoke remains together with the curved seatstay to retain the iconic side-on silhouette of the original Curve GXR.
AIR Kev features a stripped-down version of our Ride 415 fork, dubbed the Race 415 fork, with internal brake hose routing and without M5 cargo mounts.

Elements of Australian Manufacturing

All AIR Kev frames are bonded and finished by Curve in Melbourne, Australia. AIR artwork, painting and cosmetic finishing are completed by hand within Curve’s new paint facility using high-end automotive products. This is part of Curve's mission to establish elements of our manufacturing process in Australia where we can control, develop and refine new processes in-house.
Fabrication of the titanium frame, carbon tubes and 3D-printed titanium elements remains with our trusted and established partners in China.

Race or Party Mode

While the AIR Kev is built to go fast, all Kevs are ready to party on chunkier gravel. The AIR Kev frame and Race 415 fork can accommodate a maximum tyre clearance of 700c x 50mm, and even wider up front, giving you plenty of options for all-terrain adventures. AIR Kev is also compatible with 650b wheelsets if you want to venture further off the beaten track.
The rear dropouts are fully SRAM UDH/T-Type compatible, for the ultimate wide gear range builds. The flat-mount brake tab is positioned for a 160mm rotor without the need for an adapter.



Can I use SRAM Transmission? YES! We've redesigned our CNC-machined UDH dropout to be fully T-Type compatible
Can I use any groupset? No, this frame will only be compatible with fully wireless groupsets. I.e. SRAM AXS only.
What's the biggest tyre size I can fit? The frameset is optimised around 700c x 45mm, but you will be able to fit up to 700c x 50mm tyres in the frame. The fork can take up to 29 x 2.4" tyres.
Can I mount a rack? It depends. Since this is a race bike, we removed all extraneous mounting points on both the frame and the fork. A tailfin rack will be compatible using their universal axle.
View full details

If you are building your Curve frameset with a self-supplied groupset, please see the specification guide via the link below to ensure the necessary parts are sufficiently compatible with our framesets.

The specification details may change over time. Please check HERE for the latest version.

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Frameset Specifications for Self-Supplied Groupsets