The Trek Speed Concept SLR 9 2027 tops the Shimano side of the range — 800 Series OCLV Carbon, fully integrated aero cockpit, and Shimano's best groupset, Dura-Ace Di2.
WHO THIS BIKE SUITS
You want Shimano's best groupset on Trek's flagship TT/tri platform.
You want the deepest Bontrager Aeolus RSL 51 wheels the range offers.
You're racing seriously and want no compromises on drivetrain performance.
IF YOU'RE LOOKING FOR SOMETHING DIFFERENT
If Ultegra Di2 covers what you need, the SLR 7 gets you the identical frame for considerably less.
WHERE IT SITS IN THE RANGE
The SLR 9 is the top of the Shimano side of the Speed Concept range — identical 800 Series carbon frame to the SLR 7, with Dura-Ace Di2 and deeper wheels as the standout upgrades.
Full Speed Concept range: SLR 7 — SLR 7 AXS — SLR 9 AXS.
HOW IT RIDES
Aero and adjustability
The Speed Concept's KVF (Kammtail Virtual Foil) tube shaping and fully integrated cockpit are built around one goal — minimising drag. The aerobar cockpit is adjustable across thousands of fit combinations using just Allen keys, with independently adjustable extensions, armrest positions and stack height, so the bike can be dialled in properly to your position rather than the other way around.
IsoSpeed and disc brakes
IsoSpeed carries over from Trek's road platform for genuine road-smoothing comfort — reviewers note it's a real improvement over rim-brake Speed Concept generations, even if a true triathlon bike is never going to ride like an endurance road bike. Disc brakes bring reliable stopping power and open up a wider range of compatible wheel options than the rim-brake bikes this replaced.
Integrated storage
Built-in aero hydration, fuel, and flat-kit storage keep everything you need on a long race or ride tucked out of the wind, with a genuinely spacious integrated top tube storage box — reviewers have specifically praised how well organised and usable Trek's version of this is compared to rivals.
THE FINAL WORD
Come in and we'll talk through fit — this is a bike where getting your position dialled in properly matters more than on almost any other.
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
Frame: 800 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shaping, T47 BB, integrated Bento box, integrated downtube storage
Fork: Speed Concept full foil carbon, integrated brake and stem
Headset: Integrated, internal cable routing
Bottom bracket: Praxis, T47 threaded, internal bearing
Shifters: Shimano Di2 satellite shifters
Rear derailleur: Shimano Dura-Ace R9250 Di2, 34T max cog
Crank: Shimano Dura-Ace R9200, 52/36, 165 mm length
Cassette: Shimano Dura-Ace R9200, 11-30, 12-speed
Chain: Shimano Dura-Ace/XTR M9100, 12-speed
Brakeset: Shimano Dura-Ace hydraulic disc
Rotor: Shimano CL900, CentreLock, 160 mm
Wheels: Bontrager Aeolus RSL 51
Tyres: Bontrager R4 320, 700x25 mm
Handlebar: Speed Concept mid-rise integrated bar/stem, fully adjustable aerobar extensions and armrests
Saddle: Bontrager Hilo Pro Carbon
Seatpost: Speed Concept SLR, 11.5 mm or -20 mm offset, tall length
Personalised Bike Consultation
Not sure which model is perfect for you? Our expert team at All Ride Now in Midhurst, West Sussex is here to help you choose with confidence.
- Will you be riding mainly on or off-road?
- Do you prefer an upright or sportier riding position?
- Are you looking for longer range, lighter weight, or a more comfortable feel?
Through a friendly consultation – in-store, by phone, live chat or email – we’ll help you narrow down your options and find the bike that best fits your needs.
