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GMX+ Titanium

GMX+ Titanium

Regular price $7,999.00 AUD
Regular price $0.00 AUD Sale price $7,999.00 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 Rohloff, Pinion or Effigear builds.

Need Help With Sizing?
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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. Furthermore, the newer model Seek 430 FM fork, features 4 x M5 mounting points on each blade, and can accommodate anything from extra water bottles, our Rocket Pooches, or any other micro pannier or fork-specific bag.  Please keep in mind that it is designed to carry a max weight of 14 kg (7 kg/ blade across three mounting 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 FM 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 an alloy Walmer Bar with your GMX+ frameset online for AUD $100, save $99!

  • Frame Sizing

    The GMX+ ranges from size XXS to XXL, including an XM (extra medium) option, with clearance for up to 3" tyres. Sizes SM–XXL are 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.

  • Custom Rohloff, Pinion or Effigear Build

    Did you know that we offer custom build options for our GMX+ Ti to support Rohloff internally geared hubs as well as Pinion and Effigear gearboxes for either chain or belt drive? To effectively use a Rohloff or gearbox, you need a way to tension the chain or belt. There are a few ways to achieve this, but the straightforward and most reliable way in our opinion is via adjustable dropouts. We have developed our own sliding dropout system, with a range of inserts, that can accept various wheel, axle and brake types. The gearbox-compatible version of our GMX+ comes with a 3D-printed yoke behind the gearbox case which helps us achieve the frame stiffness required for a gearbox with belt drive. The Rohloff-compatible version comes with sliding dropout inserts that work seamlessly with a standard Rohloff Speedhub in QR-configuration. We can offer inserts for use with either Post Mount or Flat Mount brake calipers. For belt drive compatibility we also add an almost invisible split in the seat stay. Frames supporting internal gear systems are made to order, with a lead time between six and nine months. There is a surcharge for these custom options. Get in touch to learn more about pricing and current lead times.

  • 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.

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 FM Fork:

- Carbon construction

- Weight: 646 gm

- Non-suspension corrected

- 8 x M5 mounts (4 per side)

- 430 mm axle to crown

- 55 mm offset

- 15 x 110 mm axle spacing

- 160/180 mm flat 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-Eagle eTap AXS 1 x 12

Shifter/Levers - Rival D1 AXS eTap 1x12 sp - LHR / RHF
Brakes - Rival D1 HRD Flat Mount Disc // CL Rotors 180 mm front | 160 mm rear
Crank - GX Eagle DUB - 30t | XS-SM: 165 mm | MD-XM: 170 mm | LG–XL: 175 mm
Bottom Bracket - Curve T47 DUB 73 mm
Rear Derailleur -  GX Eagle AXS Lunar 10-52t
Cassette - XG 1275 EAGLE 10-52t 12 spChain - GX Eagle 12 sp

SRAM Force-Eagle eTap AXS 1 x 12
Shifter/Levers - Force D2 AXS eTap 1x12 sp - LHR / RHF
Brakes - Force D2 HRD Flat Mount Disc // CL Rotors 180 mm front | 160 mm rear
Crank - GX Eagle DUB - 30t | XS-SM: 165 mm | MD-XM: 170 mm | LG–XL: 175 mm
Bottom Bracket - Curve T47 DUB 73 mm
Rear Derailleur - X01 EAGLE AXS 10-52t
Cassette - XG 1275 EAGLE 10-52t 12 spChain - GX Eagle 12 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

Customer Reviews

Based on 5 reviews
Claire Stevens
All the stars in a desert sky

Curve's GMX+ is my favourite bike of all time. After more than 3 years of adventuring with mine, I love what this bike lets me do more and more each time I load it up and launch it out the door. I give the GMX+ all the stars of a desert sky, and our adventures together have shown me plenty of them!

With the long wheel base, capacity for wide tyres, comfortable geometry and ability to carry all the gear for limited resupply, the Curve GMX+ is the perfect bike for long distance and remote bike packing missions. Mine has very capably taken me across deserts, through bog and icy mud, over mountains, bouncing along ridiculously rocky trails and zipping around single track.

The GMX+ loves adventure and can take you anywhere with confidence and comfort, it is just so good!

Theo Kelsey

It’s without a doubt the most capable off road long distance bike ever made. I have ridden this bike through deserts, snow storms, swamps, and everything in between. Loaded or unloaded it handles beautifully and keeps you really comfy all day long. Big tires and long wheelbase keeps it super stable and let’s it devour anything in its way!

Jo Lee
Money can buy you happiness 😏

I’m super chuffed with my Kevin & wanted something burlier for future adventures. There’s plenty of reviews on Curve bikes so I’ll focus on the purchase experience because I think this is what Curve excels at.

From inception, to sourcing parts & final delivery the process was so easy. It didn’t feel like I was just ‘buying’ something but creating (dare I sound corny) ‘a dream’. And you don’t get a naff big red bow like you would with a dream car, but an awesome NEW BIKE DAY photo with the crew. I

I’m now a giggly happy owner of a GMX & I feel like Monkey Magic riding his pink cloud.

Nick Skarajew
Go anywhere, 29+!

I'd give this 29+ stars if I could. At home crossing the desert, as well as the local single track. I've got mine set up with bar end shifter and microshift, but often set up single speed too.

Alice Marsh
Bikes a Boss

By far my most used and versatile bike! Taken it overseas and done some long haul trips and it doesn’t miss a beat! Big wheels make the difference, will never go back now!!