The Kevin of Steel is a "do it all" package from Australian adventure cycling specialists Curve Cycling. Now back in stock with a new paint and a top level Sram AXS electronic shifting spec!
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Freshly arrived in store the Curve GXR is a perfect allround gravel and daily adventure bike 

Gravel Bike, touring bike, adventuring racing bike ? The Curve GXR is all of these and so much more. A light and lively steel frame, carbon fork and top spec components make this a great bike for all of lifes adventures ! 

The new version of the bike features a Sram Rival AXS Wireless drive train with a GX Eagle derailleur and 10-51T cassette. The Curve wheels are also a spec highlight with Dt Swiss 350 Hub and Fast rolling Vittoria Mezcal tyres setup tubeless as stock.  

Curve says:

"Our favourite steel gravel bike is back with a new look. Introducing the mesmerising Ninja Mermaid colourway. This extraordinary hue is the ultimate chameleon, inspired by the depths of the ocean and the magic of legendary ninjas and mermaids." 

The Ride 400 fork 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.


FrameCurve GXR - Columbus Zona & 4130 Chromoly
Fork Ride 400 Carbon Fork
HeadsetCurve 44 mm semi-internal
WheelsGrav AL - 650B - 23 mm internal, 28 mm external, 23 mm deep - Hub: DT Swiss 350 28H Centre Lock - Spokes & Nipples: Sapim Sprint & Brass
TyresVittoria Mezcal III - 2.1
BrakesSram Rival Hydro
ShiftersSram Rival AXS Wireless
DerailleursSram Eagle AXS Wireless
CranksetSram Rival
CassetteSram Eagle
Bottom bracketCurve T47
HandlebarCurve Walmer XS-MD: 46BP | L–XL: 50BP
StemZipp Service Course +/- 6° XS–S: 70 mm | M–L: 80 mm | XL: 90 mm
SeatpostZipp Service Course Zero Setback 27.2 mm
Saddle Fi'zi:k Vento Argo
AccessoriesSweet Cockatoo headbadge

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 Ride 400 fork 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 aluminum 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

Curve's Ride 400 fork, originally titled GXR fork, was built to complement the Kevin of Steel and titanium GXR frameset. Featuring 3 x 12 mm M5 mounting points on each blade, the Ride 400 fork can accommodate anything from extra water bottles, our Rocket Pooches, or any other micro pannier or fork-specific bag.
There is ample room for bikepacking bags on all frameset sizes.




Curve Cycling products are designed, engineered and manufactured for adventure. We strive to offer industry leading, innovative adventure tools to help support you on your journey. Each product we offer is optimised for its intended purpose and designed to perform reliably during a reasonable product life-cycle.

We understand that adventure cycling attracts inherent risks. Please ride in conditions and terrain appropriate to your skill level and the intended use of your Curve Cycling product to avoid personal injury and/or premature damage or failure to your equipment.

While it is extremely rare, products can fail or become damaged during normal use. If your Curve Cycling product fails during normal use for the intended application we’ll either:

  • Replace the product, like-for-like if the product is current and in stock. A product that is discontinued may be eligible for an exchange to an alternative model or an updated version of that model. Additional costs may be incurred if the exchange requires additional parts due to incompatibility.
  • Provide a best effort repair of the product. This covers scenarios including, but not limited to, re-welding a cracked frame, repairing a failed water bottle boss or rebuilding a broken wheel.
  • Exchange the product for a different product if that works for the customer. If the replacement product has a greater value, the customer is responsible for paying the difference in price.
  • In some very rare cases, a refund of the purchase cost will be offered.

In some cases, we require the product to be returned to the Curve Cycling HQ in Melbourne Australia or the dealer from which you purchased your Curve Cycling product for the warranty to be assessed.

Curve Cycling will pay for all reasonable shipping costs related to warranty claims.

Please contact [email protected] to discuss your warranty claim.

In addition, to make a claim please complete the form HERE to start the process for your Curve product. 


33 Years:

  • Titanium frames

5 Years:

  • Carbon rims
  • Steel frames
  • Axles
  • Other titanium products, not otherwise mentioned

2 Years:

  • Rocket Pooch titanium cage
  • Handlebars
  • Carbon forks
  • Seat posts
  • Seat clamps
  • Aluminium rims
  • Custom paint (peeling and cracking only) arranged by Curve Cycling

1 Year:

  • Rocket Pooch bags
  • Headsets
  • Bottom brackets
  • Paint (peeling and cracking only) on Curve Cycling frames and forks
  • Surface finishing on Curve Cycling products (eg anodising on axles)

Non-Curve Cycling branded products that have been supplied by Curve Cycling will attract their own manufacturer's warranty. This will be processed by Curve or a Curve dealer. Some brands regularly supplied by Curve include, but are not limited to, the following: SRAM, DT Swiss, Sapim, Vittoria, Donnelly, Skin Grows Back, 7mesh, Apidura, Arundel, King Cage, Chris King, Ingrid, Garbaruk, Ratio 12, Fizik, and Zipp.


  1. Curve Cycling will assess your warranty claim and, at its sole discretion, determine whether your claim is within the Warranty Policy terms.
  2. Curve Cycling will, at its sole discretion, either repair or replace the product, if your claim is determined to be a warranty case.
  3. Warranty is void if any alteration or modification has been performed. The only exception to this is if a seat post or fork steerer tube has been cut by a professional bike mechanic. Proof of professional work completed will be required.
  4. Warranty is void if any aftermarket hydration systems are used without approval from Curve Cycling. Systems including, but not limited to the Wolftooth B-Rad system can cause a huge amount of additional stress to water bottle bosses - use of this system voids your warranty.
  5. Warranty covers defects in materials and craftsmanship, including manufacturing defects.
  6. Warranty does not cover the wear and tear through normal use. This includes surface discolouration, marring and scratching from strapping bags onto frames.
  7. Warranty does not cover use that is outside of the intended use. For example a road bike is intended to be ridden on roads, not on downhill MTB trails.
  8. The date on your Invoice is the date your warranty period commences.
  9. Warranty does not cover damage caused by improper assembly or incompatible mixing of parts. Please have your bike / parts assembled by an authorised Curve Cycling dealer or a professional bicycle mechanic.
  10. If you have arranged custom paint for a frame or fork through Curve Cycling as part of your purchase, and your frame or fork is subject to an approved warranty claim, Curve Cycling will repaint the replacement frame or fork to the same standard but only within the warranty period of the paint. If your warranty is successful but beyond the warranty period of custom paint supplied by Curve Cycling, there is no obligation on Curve Cycling to replace the custom paint, only the product in question. 
  11. Warranty on factory paint and finishing on Curve Cycling products, and custom paint arranged by Curve, only covers peeling and cracking. It does not cover paint surface finish damage or discolouration through normal use. Chipping, scratches and bag strap wear are considered wear and tear through normal use and not matters for warranty consideration. Over time, paint fades and finishing work deteriorates due to (and not limited to) sun exposure, bag rubbing, rock damage and other wear and tear.
  12. Warranty does not cover damage caused from abuse, crashing or accidents. A crash replacement claim can be submitted in this case.
  13. Warranty is valid for the original purchaser with proof of purchase supplied with the warranty claim. Second-hand Curve Cycling products are covered by this warranty but with the following additional conditions:
    1. The warranty period is determined by the time of the first purchase, not your second-hand purchase.
    2. You will be responsible for the cost of shipping your damaged product to Curve Cycling and for the cost of shipping a repaired or replacement product to you.
    3. You will be responsible for a processing fee of 20% of the current retail price of the replacement product.
    4. Proof of purchase from the original purchaser is required.
  14. Warranty terms for sample and ex-demo products bought directly from Curve Cycling will be one year unless otherwise specified during the sale process.
  15. This warranty policy is subject to change. The current warranty policy will be published on Curve Cycling’s website.


Curve Cycling will do everything possible and reasonable to ensure that our customers will be affected for as short a time as possible. Due to the complexity of our supply chain and the current status of manufacturing in general, this time may vary from as short as one week to as long as six months. A loan of goods may be arranged where possible until a suitable outcome is achieved, but is not guaranteed.


The team at Curve Cycling genuinely cares about supporting our community of riders. You have entrusted us to equip you for your grand adventures and we take that very seriously. We are all straight-shooting, reasonable people and we will do what we can to keep you rolling.


If you have an accident and damage your Curve Cycling product in a way that is not covered by your personal insurance, you may be, at the sole discretion of Curve Cycling, offered a discounted crash replacement product.

This offer applies to the following products and time frames after manufacture:

  • Titanium frames: 5 years
  • Steel frames: 2 years
  • Carbon forks: 2 years
  • Handlebars: 2 years
  • Wheelsets (carbon rims) and carbon rims: 2 years
  • Wheelsets (aluminium rims) and aluminium rims: 1 year

The crash replacement policy applies only to the original product owner, with the following product exceptions. For titanium frames and carbon forks, the crash replacement policy applies to all Curve Cycling product owners, not just the original owner. In these cases Curve Cycling can easily determine the manufacturing date from product serial numbers.

Please contact [email protected] to discuss your crash replacement claim.