Trek 2021 Project One Speed Concept


Speed Concept is a lot of things, but above all, it’s fast. It’s our most aerodynamic bike, which makes it an ideal triathlon bike and a great choice for TT enthusiasts who know every second matters. Plus, it’s an exceptional value: adjustability, integration, customisation options and aero wheels – all in a super aero bike built for flat-out speed.


Available in Large or can be ordered through Project One

Ring For Availability


The Project One Speed Concept is right for you if…

You’re out to win and you’re looking for the aero advantage other triathlon bikes simply can’t provide. You understand fit is a crucial part of going fast and you want a bike that’s infinitely customisable to your perfect aero position.

The tech you get

Lightweight 500 Series OCLV Carbon frame, drag-reducing Kammtail Virtual Foil (KVF) tube shaping, Speed Concept full foil carbon fork, Di2 shifting, Bontrager Speed Limit integrated brake set, fully integrated handlebar and stem, Bontrager Hilo Comp triathlon-specific saddle for an aggressive and aero position, and aerodynamic Bontrager Aeolus Pro 5 OCLV Carbon wheels.

The final word

When you ride Speed Concept, you’re gonna go fast.A lightweight carbon frame, aero tube shaping, carbon wheels and Di2 shifting mean speed and efficiency where it counts. Triathletes, time trialists, general speed demons – this one’s for you.

Why you’ll love it

  1. It’s a triathlon superbike that’s proven to be the fastest in the wind tunnel
  2. PRs are for breaking, and Speed Concept is the bike designed to put you closer to whatever goal you’ve set for yourself, whether that’s a faster bike split or a new speed record
  3. Make it yours: it’s fully customisable through Project One
  4. Speed Concept is easy to adjust and comes in an extended size range, which means that every rider can find their fastest, most dialled fit
  5. Easy build, easy travel: fast assembly makes it easier to travel to races





Frame 500 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, BB90, Speed Fin compatible, Duotrap-compatible, SC Draft Box 2 and SC Speed Box 2 compatible
Fork SC full foil carbon, integrated brake and stem

Front wheel Bontrager Aeolus Pro 5 OCLV Carbon, Tubeless Ready, QR
Rear wheel Bontrager Aeolus Pro 5 OCLV Carbon, Tubeless Ready, QR
Tyre Bontrager R3 Hard-Case lite 700×25
Max tyre size 25 c Bontrager tyres (with at least 4 mm of clearance to frame)

Shifter Shimano Di2 Bar End 11-speed. Ultegra Brake Levers with Di2 Shifting
Front derailleur Shimano Ultegra R8050, braze-on
Rear derailleur Shimano Ultegra R8050, short cage, 30T max cog
Shimano Ultegra R8000, 52/36 (compact), 170 mm length
Bottom bracket Trek BB90
Cassette Shimano Ultegra R8000, 11-28, 11-speed
Chain Shimano Ultegra HG701, 11-speed