Free shipping and professional assembly
Order your bike online and we'll ship to the Trek shop of your choice to be professionally assembled. All you have to do is pick it up!
"An impressively fast and comfortable top-of-the-range triathlon bike"
"Overall, we loved our time on the Speed Concept. The improved comfort, storage features and adjustability alone make it worth the wait over the previous version. Add in the claimed speed benefits, and you have a superbike that’s up there with the very best in 2022."
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4.5/5
"I can’t oversell how much fun this bike is to ride… a quick, tight-handling set-up"
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Speed Concept-compatible accessories
Make sure that your Speed Concept is dialled and race-ready with compatible accessories and gear.
Shop nowService manual
Time to get out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values and platform-specific tech instructions below.
Get it hereThe always-on team
Research shows the single most impactful measure you can take to stand out to motorists is to use front and rear Daytime Running Lights. The team uses them on every training ride, any time of day—and they’ve found that these lights truly make a difference.
Read moreProduct features
Fast aero shapes
This Speed Concept is the fastest bike we’ve ever tested – and it’s six minutes faster than the previous model at Kona. The ultra-light 800 Series OCLV Carbon frame’s drag-reducing Kammtail Virtual Foil tube shapes cut through the air.
Smart storage
Integrated fuel and hydration storage makes it simple and stress-free to stay strong without leaving your aero position.
Dial in the perfect fit
Our system is designed to fit as many triathletes as possible. It’s fully customisable, simple to adjust and preserves your fit while you travel
Smooth ride
Top Tube IsoSpeed takes the edge off rough roads, keeping you fresher and less fatigued not only on your ride, but on your run as well.
Shimano Ultegra Di2
Ultegra Di2 R8100 is Shimano’s most inspired drivetrain, packed with innovative, game-changing features. HYPERGLIDE+ technology allows for crisp, seamless shifts both up and down the gear range, even during maximal efforts. The new Di2 shifting system introduces Shimano’s exclusive wireless integrated circuit and the move to a 12-speed cassette ensures you have all the gearing you need. Ergonomics and aerodynamics have been enhanced at every turn and you can set up the drivetrain just the way you like it via Shimano’s user-friendly E-Tube app.
Don’t forget your pedals
This bike doesn’t come with pedals because you’ll have a better time on your new bike if you choose your own. See the pedal guide to find the best pedals for your riding style. We recommend clipless road pedals for control and efficiency.
Project One
Don't settle for anyone else's bike. Create your very own with Project One, Trek's custom bike programme.
Learn moreWarrantied for life
Carbon wheels can lighten your ride and improve your performance – and when you ride Bontrager, your investment is protected. All Bontrager carbon wheels are backed by a lifetime warranty for the original owner.
Carbon Care Wheel Loyalty Programme
Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Programme. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.
Learn more| Frame | 800 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, T47 BB, integrated Bento box, integrated downtube storage |
|---|---|
| Fork | SC full foil carbon, integrated brake & stem |
| Frame fit | Triathlon |
| Weight | M - 8.97 kg/19.78 lb |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb). |
| Battery | Shimano BT-DN300 |
|---|---|
| Charger | Charging cable included |
| Shifter | Shimano Dura-Ace hydraulic disc, R9180 Di2 lever, R9270 calliper, 160 mm rotor |
|---|---|
| Front derailleur | Shimano Ultegra R8150 Di2, braze-on, down swing |
| Rear derailleur | Shimano Ultegra R8150 Di2, 34T max cog |
| *Crank |
Size:
S, M, L Shimano Ultegra R8100, 52/36, 170 mm length |
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Size:
S Shimano Ultegra R8100, 52/36, 165 mm length |
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Size:
M, L, XL Shimano Ultegra R8100, 52/36, 172.5 mm length |
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Size:
XL Shimano Ultegra R8100, 52/36, 175 mm length |
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| Bottom bracket | Praxis, T47 threaded, internal bearing |
| Cassette | Shimano Ultegra R8101, 11-30, 12-speed |
| Chain | Shimano Ultegra/XT M8100, 12-speed |
| Max. chainring size | 1x: 58T, 2x: 55/44 |
| Wheel front | Bontrager Aeolus Pro 51, OCLV Carbon, Tubeless Ready, 100x12 mm thru axle |
|---|---|
| Wheel rear | Bontrager Aeolus Pro 51, OCLV Carbon, Tubeless Ready, Shimano 11/12-speed freehub, 142x12 mm thru axle |
| Skewer front | Bontrager Switch thru-axle, removable lever |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Tyre | Bontrager R3 Hard-Case Lite, aramid bead, 120 tpi, 700x25 mm |
| Max tyre size | 28 mm rear, 25 mm front |
| Saddle | Bontrager Hilo Comp, hollow chromoly rails |
|---|---|
| *Seatpost |
Size:
S Speed Concept SLR, 11.5 mm or -20 mm offset, short length |
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Size:
M, L, XL Speed Concept SLR, 11.5 mm or -20 mm offset, tall length |
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| *Handlebar part |
Size:
S, M Speed Concept 30 mm Base Tower |
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Size:
S, M, L, XL Speed Concept 45 mm Base Tower |
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Size:
S Speed Concept Cockpit Tower Topper Near |
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Size:
M, L, XL Speed Concept Cockpit Tower Topper Mid |
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Size:
L, XL Speed Concept 60 mm Base Tower |
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| Handlebar/stem (integrated) | Speed Concept mid-rise bar/stem |
| Handlebar tape | Bontrager Supertack Perf tape |
| Brake | Shimano Dura-Ace hydraulic disc, flat mount |
| Brake rotor | Shimano CL800, CentreLock, 160 mm |
| Rotor size | Max brake rotor sizes: 160 mm front and rear |
| Cage | Speed Concept Downtube Bottle Cage |
|---|---|
| Bottle | Speed Concept Downtube Bottle |