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GMX+ Titanium - Rival / GX

GMX+ Titanium - Rival / GX

Regular price $4,766.00 USD
Regular price $4,952.00 USD Sale price $4,766.00 USD
Sale Contact Us for Info
Customers outside Australia are liable for import fees which can add 15% for EU and UK shipments (compared to Australian RRP).

Contact us for help finding the perfect size for you!

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

Alternatively, Enquire Now.


Click to zoom into the geo chart.

For more information on the GMX+ geometry, click here


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.


The reach on the geo chart looks long. What size is good for me?

The short answer is that the reach number may be somewhat deceiving as the frame is designed to be run with a shorter stem. That, in combination with the comparatively steep seat angle, reduces the effective reach of the frame.

Please reach out to if you have any questions about sizing.

Read more about the GMX+ geometry here: GMX+ Geo Blog

Check HERE for further info regarding custom paint, bike set up and more.

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What would an "Overlander" ride?

The GMX+ is inspired by the intrepid Overlanders of the 1890s, who covered incredible distances without support across the harsh Australian outback. We have designed a bike that can do the same, but with much more ease using today's modern technology. The GMX+ is an adventure bike designed with wider tyre clearance thanks to our innovative carbon fork, ultra-wide drop bars for stability, and numerous mounting points for storage or water.

Tested in real-life conditions, the original GMX was designed for Race to the Rock, a harsh, remote desert race in Australia. With testing came improvements to the bike geometry and fork clearance, and so the GMX+ was born.

In recent years, the GMX+ has taken on some of the most challenging races worldwide, including Tour Divide, Silk Road Mountain Race, and Race to the Rock.

  • Load Up

    The GMX+ lets you carry more water or load more gear. The titanium frame includes mounting points on all rear stays and offset on the downtube, allowing riders to run a full-size frame bag plus 1 litre bottles to either side. The Seek 430 fork has 6 x M5 mounting points on each side, with a recommended load capacity of 3 kilograms across three mount points.

  • Walmer Bar

    Our Walmer Bar, is the perfect companion to the GMX+ as it was originally designed to work together with the GMX+ frame and our non-suspension-corrected SEEK 430 fork as an Off-Road touring system. This flared drop bar is available in several sizes and will provide the rider with more stability, hand positions, and storage space than other available handlebars. More details visit the Walmer Bar page.

    Purchase a Walmer Bar with your GMX+ frameset online for AUD $100, save $99!

  • Drop Bar or Flat Bar?

    The GMX+ can accommodate a drop bar or flat bar. Any wide drop bar, especially our Walmer Bar, will work with a shorter stem, as will our unique Remlaw Bar. Other flat bar designs may also work well, but a longer stem length may be needed.

  • Frame Sizing

    The GMX+ ranges from size XXS to XXL, including an XM (extra medium) option. Size SM–XXL is designed around 29" wheels, while XXS and XS frames run 27.5" wheels, ensuring geometry proportions and handling characteristics are consistent across all sizes. For more info on the GMX+ geometry click HERE!

    There is ample room for bikepacking bags on all frameset sizes. To make sure current, prospective or custom bagging fits your frame size please see our Bagmaker Drawing page.

  • Want to Carry More?

    With a wide range of frame and fork mounted rack systems on the market, and with more appearing every week, it is important to understand which rack systems are compatible with your Curve frame and fork, and how to mount them correctly in order to ensure safe riding, avoid damage and voiding your warranty. Before mounting a rack, we strongly recommend you get in touch with us to confirm compatibility and the correct mounting procedure. This will minimise the risk of injury, product damage and voiding your warranty. Your local Curve dealer, or the team at Curve HQ, can also help you select a rack system and mount it to your bike for you.

GMX+ Specifications



- 3Al - 2.5V Aerospace Grade 9 titanium

- 7x cage mounts

- Rear rack mounts

- Clearance max 3.0" tyres

- 1x chainring only (Max 38t)

- 12 x 148 mm axle spacing

- 160 mm direct post mount brake

- 31.6 mm seat post spacing

- T47 BB (73 mm)

Seek 430 Fork:

- Carbon construction

- Stainless steel hardware

- Non-suspension corrected

- 12 x M5 mounts (6 per side)

- 430 mm axle to crown

- 55 mm offset

- 15 x 110 mm axle spacing

- 180 mm direct post mount brake

- 1.5" tapered steerer

Curve Headset:

- 44/56 mm zero-stack


- 34.9 mm Curve Alloy Seat Clamp

- Curve Cocky Headbadge

- 15 x 110 mm front axle

- 12 x 148 mm rear axle

- Carbon expander

- Bolt-on cable guides

- Spare rear derailleur hanger

Groupset Options

SRAM Rival (Mech) 1 x 11 

Shifter/Levers - Rival HRD (mechanical shifting) 1 x 11  

Brakes -  Rival DIR LHR / RHF/  6B Centreline Rotors 180 F/ 160 R  

Crank - GX Eagle B148 DUB - 30t | XXS-SM: 165 mm | MD-XM: 170 mm | LG-XXL: 175 mm

Bottom Bracket - Curve T47 DUB

Rear Derailleur - Rival 1 Long Cage 11 sp

Cassette - XG 1150 10-42t

Chain - PC 1130 11 sp


Dirt Hoops - 29” SM-XXL / 27.5” XXS-XS

Curve carbon off-road wheels:

- 30 mm internal, 40 mm external, 27 mm deep

- Front Hub: SP Dynamo PL-8X 15x110 (6-Bolt) 28H

- Rear Hub: DT Swiss 350 28H 

-Spokes & Nipples: Sapim CX Ray & Brass

Dirt Hoops Alloy - 29” SM-XXL / 27.5” XXS-XS

Curve alloy off-road wheels:

- 30 internal x 35 external x 19 deep

- Front Hub: SP Dynamo PL-8X 15x110 (6-Bolt) 28H

- Rear Hub: DT Swiss 350 28H 

-Spokes & Nipples: Sapim Race & Brass

Finishing Kit

Bars - Curve Walmer Bar

XXS-XS: 46 | SM: 50 | MD-XM: 55 | L–XXL: 60

Stem - SRAM Atmos 60mm

Seatpost - Zipp SC 0 Setback 31.6 mm

Saddle - Fi'zi:k Vento Argo

Tyres - Mezcal III 29x2.6 / Ranger 27.5 x 3.0 TCS

Bar Tape - Curve black anti-shock

Please Note: Spec subject to change according to availability

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