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GXR (AKA Kevin)

Titanium Gravel Adventure Cross Racing Bike - Kevin is ready for anything.

** Please note long delivery times in FAQs 

Meet Kevin, aka the Curve GXR gravel adventure do-it-all bike. 

We have taken the fun of a cyclocross bike, fused in some adventure feels and rolled it into one neat do-it-all package that can take you anywhere.

Curve GXR

Designed in Melbourne

Three Years In The Making
Designing a Gravel Bike

F-Eagle has landed

Climb mountains and charge descents.

We've combined the latest SRAM Force & Eagle AXS eTap to give you a staggering 500% range.


That's a 12 speed Eagle AXS rear derailleur and 10–50t cassette paired with a 42t front chainring, Force AXS levers and cranks, all driven by SRAM's reliable wireless eTap system.

What is "F-Eagle"?

Spec your Kev.

Pick and choose your wheels and groupset to make your perfect Kevin.


Frame: Curve Titanium GXR - aka Kevin
Fork: Curve Carbon GXR Seek Fork
Headset: Curve 44mm semi-internal
Seat clamp: Curve alloy 31.8mm


Shifter/Levers Force 1 Mechanical HRD
LH rear / RH front brake
Brakes Force HRD Flat Mount Disc // CLX CL Rotors 160mm
Crank Force 1 X-Sync 40t
Derailleur Force 1 w Roller Bearing Clutch
Cassette XG 1175 10-42t Wide Range 11sp


SRAM 'F-EAGLE' eTap 12sp
1170 Power Chain
Shifter/Levers Force 1 D1 AXS eTap
LH rear / RH front brake
Brakes Force HRD Flat Mount Disc // CLX CL Rotors 160mm
Crank Force D1 DUB - 42t
XXS-XS: 165mm S–M: 170mm L–XXL: 175mm
Derailleur X01 Eagle AXS 12sp
Cassette XG 1275 Eagle 10-50t 12sp
Chain GX Eagle 12sp


Grav AL - 650B Curve alloy party wheels
23mm internal, 28mm external, 23mm deep
Hub: DT Swiss 350 28H Centre Lock
Spokes & Nipples: Sapim Sprint & Brass
Dirt Hoops - 650B Curve carbon off-road wheels
25mm internal, 35mm external, 27mm deep
Hub: DT Swiss 350 28H Centre Lock
Spokes & Nipples: Sapim CX Ray & Brass
G4T 35 - 700C Curve carbon all-road wheels
21mm internal, 28mm external, 35mm deep
Hub: DT Swiss 350 24H Centre Lock
Spokes & Nipples: Sapim CX Ray & Brass

Finishing Kit

BB Curve T47 68mm
Bars Easton EA70 AX
Flared gravel bar
XS:40 S:42 M:44 L–XL:46mm
Stem Easton EA70
XS–S:70mm M–L:80mm XL:90mm
Seatpost Easton EA70 - 27.2mm 0° Setback
Saddle WTB Silverado Pro
Tyres WTB Venture 700 x 40 Black / Donnelly X'Plor 650B x 50
Bar Tape Curve - black anti-shock
PLEASE NOTE: Spec subject to change according to availability

Asset 2 Sizing  & Geometry

Asset 3 Bike Size XXS XS SM MED LGE XL XXL
Asset 5 Rider Height Range - cm 148-157 154-163 160-170 166-178 175-187 184-194 190-200
Asset 4 Saddle Height - mm to BB 610-670 650-705 690-735 720-765 745-795 775-825 805-865

* Match your measurements to guide your bike size. If unsure, hit the green Contact Us button.


What’s the turnaround time for a GXR - aka Kevin? If ordering a frameset only, and the required size is in stock, you should receive your order within 2–3 weeks. If the size you need is out of stock, or if you have ordered any custom modifications, your GXR will take an additional 6–12 weeks to go through production. Please allow 8–12 weeks for complete bikes to build after a minimum 50% deposit has been paid.
Do you ship to my home town? We can ship your GXR frameset to you anywhere in the world, however check out our Stockist page to find for your local Curve Crew to help you out with a complete bike.
Where can I test ride a GXR? Contact us to book at time to pop in to Curve HQ, Melbourne, or check our Stockists page to contact your nearest Curve retailer.
What are the main differences between a GXR and a Belgie Spirit? If you want to do more gravel and trail then the GXR is the better fit! The Belgie Spirit is good at light gravel but is more of an endurance bike. The GXR (Kevin) is great both on and off road. Really just depends if you are going to spend more time on the road or if you want the added versatility of a gravel specific bike that can run multiple wheelsets. The Spirit is limited to max 700c x 32mm tyres.
When shipping direct, how does a complete bike come finished to me? Each bike built and boxed to "90% complete" with the fork steerer uncut and bar tape is not wrapped. We do this so each individual can personalise their setup options. This final procedure should be preformed by an experienced bike mechanic.

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