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It's 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 customizable 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, full Shimano Ultegra 11-speed drivetrain with Dura-Ace bar end shifters, Bontrager Speed Limit integrated brakeset, fully integrated handlebar and stem, Bontrager Hilo Comp triathlon-specific saddle for an aggressive and aero position, and aerodynamic Bontrager Aeolus Comp OCLV Carbon TLR wheels.
The final word
When you ride Speed Concept, you're gonna go fast. A lightweight carbon frame, aero tube shaping, carbon wheels, and an 11-speed Shimano Ultegra drivetrain mean speed and efficiency where it counts. Triathletes, time trialists, general speed demons—this one's for you.
The Walkthrough
favorite_borderWhy you'll love it
- It's a triathlon superbike that's proven to be the fastest in the wind tunnel
- 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
- Make it yours: it's fully customizable through Project One
- Speed Concept is easy to adjust and comes in an extended size range, which means every rider can find their fastest, most dialed fit
- Easy build, easy travel: fast assembly makes it easier to travel to races
"BikeRadar gives Speed Concept 4/5 Stars"
"With a laser focus on aerodynamic performance, this bike flies on the open road"
Read moreFeatures
500 Series OCLV
500 Series OCLV achieves a superb balance of light weight, strength, and stiffness that's perfectly suited to the sophisticated frame technologies that distinguish Trek frames.
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Beyond the wind tunnel
We went beyond the wind tunnel to make the world's fastest bike even faster. We factored in real-world conditions, tested on actual courses, and again left the competition behind.
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Fast build, easy adjustment
Tri bikes are not known to be mechanic friendly. But Speed Concept changes that. It’s faster to build, easier to adjust, simpler to pack for race travel. You’re welcome.
Full-foil fork
We tested every shape possible, and found this 6:1 ratio is fastest where it matters most. This fork slices the wind from 2.5-12.5 degrees of yaw angle without stalling for unparalleled aerodynamic performance in real-world wind conditions.
Integrated handlebar
Bar is integrated into the frame for the sleekest, lowest-drag profile.
Integrated Speed Storage
Bontrager integrated Speed Storage products are so well fitted to the Speed Concept frame that you and your bike are actually more aerodynamic with them than without.
KVF tube shape
Our exclusive Kammtail Virtual Foil (KVF) is the most aerodynamic tube shape ever designed for a bicycle. And now it's even faster, with less frontal area and reduced drag at all yaw angles.
Kammtail virtual foil
Project One
Don't settle for anyone else's bike. Create your very own with Project One, Trek's custom bike program.
Learn more
Ultra-clean front end
Move around to the front of Speed Concept and an amazing thing happens: it all but disappears. Fully integrated handlebar with hidden shift and brake cables presents 30% less surface to the wind. It's the lightest, cleanest, most aero front end ever.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | 500 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, BB90, Speed Fin compatible, DuoTrap compatible, SC Draft Box 2 & SC Speed Box 2 compatible |
|---|---|
| Fork | SC full foil carbon, integrated brake & stem |
| Frame fit | Triathlon |
| Wheel front | Bontrager Aeolus Comp, OCLV Carbon, Tubeless Ready, 100x5mm QR |
|---|---|
| Wheel rear | Bontrager Aeolus Comp, OCLV Carbon, Tubeless Ready, Shimano 11-speed freehub, 130x5mm QR |
| Tire | Bontrager R2 Hard-Case Lite, aramid bead, 60 tpi, 700x25c |
| Max tire size | 25c Bontrager tires (with at least 4mm of clearance to frame) |
| Shifter | Shimano Dura-Ace, bar end, 11 speed |
|---|---|
| Front derailleur | Shimano Ultegra R8000, braze-on |
| Rear derailleur | Shimano Ultegra R8000, short cage, 30T max cog |
| *Crank |
Size:
S Shimano Ultegra R8000, 50/34 (compact), 165mm length |
|
Size:
M Shimano Ultegra R8000, 50/34 (compact), 170mm length |
|
|
Size:
L Shimano Ultegra R8000, 50/34 (compact), 172.5mm length |
|
|
Size:
XL Shimano Ultegra R8000, 50/34 (compact), 175mm length |
|
| Bottom bracket | Trek BB90 |
| Cassette | Shimano Ultegra R8000, 11-28, 11 speed |
| Chain | Shimano Ultegra HG701, 11-speed |
| Saddle | Bontrager Hilo Comp, hollow chromoly rails |
|---|---|
| *Seatpost |
Size:
S Bontrager Speed Concept Race Lite, alloy, +/-20mm offset, 275mm length |
|
Size:
M, L, XL Bontrager Speed Concept Race Lite, alloy, +/-20mm offset, 335mm length |
|
| Handlebar | Bontrager Speed Concept KVF aero bar, carbon, direct mount, UCI legal |
| Handlebar tape | Bontrager Gel Cork tape |
| *Stem |
Size:
S Bontrager Speed Concept, direct mount, 69mm rise, 67mm reach |
|
Size:
S, M, L, XL Bontrager Speed Concept, direct mount [p] |
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|
Size:
M, L, XL Bontrager Speed Concept, direct mount, 61mm rise, 110mm reach |
|
| Brake | Bontrager Speed Limit integrated, Bontrager Race Lite aero levers |
| Brake lever | Bontrager Race Lite aero |
| Weight | M - 9.09 kg / 20.05 lbs |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg). |
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
Rider Height
Inseam
S
154.0 - 167.0 cm
5'0.6" - 5'5.7"
72.0 - 80.0 cm
28.3" - 31.5"
M
167.0 - 175.0 cm
5'5.7" - 5'8.9"
77.0 - 83.0 cm
30.3" - 32.7"
L
175.0 - 186.0 cm
5'8.9" - 6'1.2"
82.0 - 88.0 cm
32.3" - 34.6"
XL
186.0 - 198.0 cm
6'1.2" - 6'6.0"
87.0 - 93.0 cm
34.3" - 36.6"
All measurements provided in cm unless otherwise noted.
| Frame size letter | Wheel size | A — Seat tube | B — Seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack | Saddle rail height min (w/short mast) | Saddle rail height max (w/tall mast) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | 700c | 50.3 | 78.0° | 6.5 | 72.2° | 49.5 | 8.0 | 40.0 | 4.5 | 6.1 | 96.1 | 75.0 | 39.0 | 49.2 | 59.9 | 74.7 |
| M | 700c | 52.9 | 78.0° | 9.0 | 72.5° | 51.8 | 8.0 | 40.0 | 4.5 | 6.0 | 98.5 | 77.5 | 40.8 | 51.7 | 62.5 | 77.2 |
| L | 700c | 55.3 | 78.0° | 11.5 | 72.5° | 54.1 | 8.0 | 40.0 | 4.5 | 6.0 | 101.0 | 79.9 | 42.6 | 54.1 | 64.9 | 79.6 |
| XL | 700c | 57.8 | 78.0° | 14.0 | 72.5° | 56.5 | 8.0 | 40.0 | 4.5 | 6.0 | 103.7 | 82.3 | 44.5 | 56.5 | 67.3 | 82.0 |
