Colibri Ti Ultegra Di2

Photos for illustration purposes. Please check the bike spec for detailed component listings.

Colibri Ti Ultegra Di2

Titanium endurance road bike


Feel fresher for longer. Colibri's modern performance geometry is tuned in for all-day riding comfort and speed on Britain’s varied road surfaces. Colibri Ti Ultagra Di2 is for fast, smooth days. It’s for Alpine adventures, exploring new roads, riding in the summer and for riding through the winter, where you’ll get out, no matter what the weather’s doing. It’s the bike for every day of the year.

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Orderbook opens March 2023 for delivery in September 2023.


Light, fast, responsive and smooth. Really smooth. The Colibri Ti glides up long climbs and it’s a rapid and confident descender. Quick when you want it to be, relaxed and easy to pilot when you want to take it easy.

With Ultegra DI2 you get fast and accurate shifting every time. The shifters and brake levers are an incredibly comfortable place for your hands and you can adjust the bite point of brake levers to get it just how you want it. Paired with the R8070 calipers you get outstanding, reliable braking, perfectly modulated. The new R8050 rear derailler has more accurate chain placement than ever and the smooth gear changes are a perfect match for the Colibri’s titanium ride.

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It’ll take up to 36mm tyres or 32mm with mudguards. And talking of guards, there are all the mounts you need for guards and racks, which means this really is a bike you can ride every day of the year. And love it.

A 4 season endurance road bike, Colibri Ti takes on all road conditions making it ideal for the Fred Whitton or the mountain climbs of the Tour de France. This is the bike for Galibier, Ventoux, Glandon, Alpe d’Huez, Bealach Na Ba, Bwlch-y-Groes, Hardnott, the list is endless.

At a glance

  • Shimano Ultegra R8100 2x 12-speed groupset
  • Colibri Carbon fork
  • Sonder Alpha 700c Aero UK made wheelset
  • Hand-welded titanium frame

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Fast, smooth endurance road geometry

Colibri gives you the perfect sweet spot for comfort, confidence and efficiency.

Carbon monocoque fork

Lightweight, stiff and responsive. The Colibri's full carbon fork gives direct steering and smooth braking.

(Very) generous tyre clearance

Ride tyres up to 36mm, or 32mm with plenty of room for mudguards.

Internal cable routing

Clean lines and tidy cables thanks to fully guided internal routing.

Tapered headtube

Tapered steerer and headtube gives more precise cornering and increases feedback when riding.

Flat mount brakes

Smooth, consistent braking.

Build Spec
Frame:Colibri Ti Frame
Fork:Colibri Carbon | Tapered
Headset:FSA Orbit C-40-ACB
Shifters:Shimano Ultegra R8170 Di2 | 2x | 12-speed
Brakes:Shimano Ultegra R8170 | Hydraulic | Flat mount
Rotors:Shimano RT66 | 160mm (front), 160mm (rear) | 6-bolt
Rear derailleur:Shimano Ultegra R8150 Di2 | Long cage | 12-speed
Front derailleur:Shimano Ultegra R8150 Di2 | Braze-on
Chainset:Shimano Ultegra R8100 | 172.5mm | 52-36t
Cassette:Shimano Ultegra R8100 | 11-34t | 12-speed
Chain:Shimano Ultegra 8100 | 12-speed
Bottom bracket:Shimano RS500 | BSA
Wheels:Sonder Alpha 700c Aero UK Made
Tyres:Goodyear Vector 4Seasons Tubeless | 700c | 30mm | Black
Tubes:Vittoria Inner Tube
Finishing kit
Handlebars:Sonder Hurricane
Stem:Sonder Storc
Seatpost:Sonder Seatpost | 27.2mm
Saddle:Sonder Abode
Tape:Sonder Reels | Black
Frame:S: 1.75kg; M: 1.83kg; L: 1.94kg; XL: 1.99kg (plus fork 0.45kg)
Pedals not included with full builds
Specifications are subject to change without notice
Geometry and Sizing


Generally we recommend:
Small: Riders between 5ft 2in and 5ft 7in
Medium: Riders between 5ft 6in and 5ft 10in
Large: Riders between 5ft 9in and 6ft 2in
X-Large: Riders 6ft 2in and over

You can also take into consideration the standover height to ensure you pick a bike that will be a good fit. If you measure your inside leg and ensure there is a minimum of an inch from the toptube to your crotch this will give you enough seatpost adjustment to find your optimum saddle height.

Size Small Medium Large X-Large
ST-Seattube 460 500 540 580
TT-Toptube 532 554 571 582
HT-Headtube 120 145 170 190
HA-Headangle 72 72 72.5 72.5
SA-Seatangle 73.5 73.5 73.5 73.5
CS-Chainstay 420 420 420 420
BB-BBdrop 70 70 70 70
FO-Forkoffset 50 50 50 50
WB-Wheelbase 991 1014 1027 1038
SO-Standover 723 754 785 815
RE-Reach 375 390 400 405
SK-Stack 530 554 580 599
Frame Spec

Titanium is lightweight, strong and durable, making it an ideal construction material for bike frames. No other material is as durable, lasts as long, or looks as good. Our frames are handmade and come with a 10 year frame warranty

Weight: S: 1.75kg; M: 1.83kg; L: 1.94kg; XL: 1.99kg (plus fork 0.45kg)
3Al / 2.5V aeronautical grade hand-welded titanium frame
Carbon monocoque fork with mudguard and cage mounts
Seatpost: ø27.2mm
Headtube: 1-1/8” – 1-1/2” tapered
Headset: IS42/28.6 | IS52/40
Spacing: Bolt-thru 12 x 142mm
Bottom bracket: 68mm BSA threaded
Full internal cable routing
Front derailleur type: Braze-on 31.8mm
Flat mount disc brake only. Rear mudguard and pannier rack mounts