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Belgie ULTRA

Our titanium endurance road bike, built to take on any long road, or light gravel adventure.



The Belgie is affectionately named after Melbourne's infamous "Belgie Ride,” a short, sharp, mixed terrain shop ride that often resembles a CX race rather than a road ride.

Then after Jesse’s success in winning the 2015 Trans Am Bike Race, we wanted to develop the Belgie name further, highlighting the spirit of Australian endurance cycling. So the Belgie SPIRIT was born in 2016 to take on the 5,545km Indian Pacific Wheel Race, celebrating the rich history of the Overlanders from the 1890s. 

Furthermore, through feedback from endurance riders and athletes worldwide, we continued to develop this frame again, improving handling, cornering, and now featuring bento box mounting points. As a result, we now call this version the Belgie ULTRA.

Where It All Started

Asset 2 Sizing  & Geometry

Asset 3 Bike Size 46 49 52 54 56 58 61 64
Asset 5 Rider Height - Range in cm 147-157 155-165 161-170 168-177 175-184 183-192 191-201 198-208
Asset 4 Rider Saddle Height - mm from BB 610-670 650-710 680-735 715-760 740-780 770-815 805-850 840-890

*All units are in mm. Match your measurements to guide your bike size. If unsure, hit the green Contact Us button.

Frameset Includes

Frame Titanium Curve Belgie Ultra
Fork Curve 700c Road Disc
Headset Curve Integrated 42/52cmm semi-internal
Seat Clamp Curve Alloy 31.8mm
Bento Box Mounts on top tube are placed 64mm apart. (76mm from of the outer diameter of the headtube)
Other Curve Cocky Headbadge
12mm Front & Rear Axles


SRAM Force AXS eTap 12sp
Shifter/Levers Force eTap AXS 2x12 sp - LHR / RHF
Brakes Force eTap AXS HRD Flat Mount Disc
CLX R CL Rotors 160mm
Crank Force 2x12sp DUB 48/35t
Bottom Bracket Curve T47 DUB 68mm
Derailleur F & R Force AXS eTap 2x12sp
Cassette XG 1270 10-36t 12sp
Chain Force 12sp


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

Bars + Stem Curve Walmer Bar (40 or 43 cm) with Zipp SC SL Stem
Seatpost Zipp SC SL - Zero Setback
Saddle Fi’zi:k Vento Argo R5
Tyres Rubino Pro TLR 700 x 30c
Bar Tape Curve - black anti-shock

Please Note:

Spec subject to change according to availability


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.
Can I ride the Ultra on gravel? Yes, sure can! The Ultra can run up to a 700c x 33 mm gravel / cross tyre that would suit light gravel adventuring.

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