Our all-road titanium road bike has just gone ULTRA. After 4 years of stories and adventures, we've updated our Belgie Spirit and renamed it the Belgie ULTRA.
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Meticulously designed and finely crafted for all-road Australian ultra-endurance riding. The ULTRA can tackle cobbles and light gravel with confidence, helped by wider tyre clearance and a lengthened wheelbase. You’ll soon discover your spirit of adventure with this titanium all-round all-roader.
A SHORT HISTORY OF THE BELGIE SPIRIT
Curve's rich history was founded upon adventure cycling, and our bikes are often designed with a specific purpose or adventure in mind.
After Jesse’s success in winning the 2015 Trans Am Bike Race, we wanted to take the Belgie name further and capture the spirit of Australian endurance cycling, so we designed the Belgie Spirit to take on the 5,545km Indian Pacific Wheel Race and celebrate the rich history of the Overlanders from the 1890’s.
Released in 2016, the Spirit was optimised for long days in the saddle on all types of road. It’s been enjoyed by ultra-endurance cyclists, commuters, roadies, randonneurs and ordinary cyclists looking for a comfortable high-end road bike.
Over the years this bike has seen many adventures, more than we can possibly recount without signing a book deal. So with our accumulated knowledge and experience, we decided to refine and tweak the Spirit into a better version of itself, which we now call the...
New thinner 16mm seat stay tubing and a new tapered headtube results in sleeker frame design and considerable weight saving. At 1630g the Belgie ULTRA 56 frame is 180g lighter.
Longer chainstays and overall wheel base across all sizes, plus a taller stack and longer reach helps make the ULTRA comfortable enough to enjoy all day.
Longer front-centre to minimise toe overlap with wider tyres.
Can fit up to 700 x 35C
NOTE: We tested with Vittoria Terreno Zero 35C, some knobbly gravel tyres may not provide enough mud clearance.
We've incorporated Bento Box mounts on the top tube and increased the size of the front triangle, improving storage capacity for top tube frame bags and water bottles. Repositioning bottle cage mounts also aid with bags and bottle clearance.
Thanks to some clever engineering, the frame is now compatible with both electronic and mechanical running gear. So you can forever switch between eTap, Di2 or mechanical shifting options.
|Rider Height. Range in cm||147-157||155-165||161-170||168-177||175-184||183-192||191-201||198-208|
|Pedal to Saddle Height. In mm||610-670||650-710||680-735||715-760||740-780||770-815||805-850||840-890|
|Curve Belgie ULTRA||46||49||52||54||56||58||61||64|
|Effective Top Tube
|Seat Tube Angle °
|Head Tube Angle °
|Stack (Inc. headset)
Titanium Curve Belgie ULTRA
1636 g for a size 56 (Belgie V3 1630 g)
|Fork||Curve Race 370|
|Headset||Curve Integrated 42/52cmm semi-internal|
|Seat Clamp||Curve Alloy 31.8mm (27.2 mm seat post diameter)|
|Bento Box||Mounts on top tube are placed 64mm apart. (76mm from the outer diameter of the headtube)|
Curve Cocky Headbadge
Full build with SRAM Force AXS: 8514 g for a size 56
|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 (Note: 140 - 160 mm front; 140 mm rear / 160 mm w/adapter) (Caliper bolt length: 15 mm F&R)
|Crank||Force 2x12sp DUB 48/35t (Max Chainring: 2x - 53/39; 1x >46t)|
|Bottom Bracket||Curve T47 DUB 68mm|
|Derailleur F & R||Force AXS eTap 2x12sp (31.8 mm clamp for front)|
|Cassette||XG 1270 10-36t 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
|Bars + Stem||Zipp SC SL Beyond Black|
|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|
Spec subject to change according to availability
|Why are framesets available so much sooner than complete bikes?||SRAM and other suppliers in Taiwan are experiencing extremely long lead times on parts and accessories|
|When shipping direct, how does a complete bike come finished to me?||Each bike is 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 performed by an experienced bike mechanic.|