Trek Speed Concept SLR 7

The Trek Speed Concept SLR 7 is a purpose-built triathlon and time trial bike engineered for riders who demand maximum aerodynamic efficiency, seamless integration, and race-ready performance from start to finish line. Finished in the striking Carbon Smoke colourway, this bike combines an ultra-lightweight 800 Series OCLV Carbon frame with a Shimano Ultegra Di2 12-speed wireless drivetrain and a suite of fully integrated components designed to help serious athletes push their limits on race day.

Who Is the Trek Speed Concept SLR 7 Built For?

The Trek Speed Concept SLR 7 is built for dedicated triathletes and time trial competitors who are serious about performance and ready to invest in a top-tier race platform. Whether you are targeting an Ironman 70.3, a full-distance Ironman, or a competitive time trial, this bike suits riders at the enthusiast-to-elite level who want a bike that works as hard as they do. Its geometry, hydration integration, and electronic drivetrain are optimised for the sustained, aggressive positions demanded by triathlon and TT racing.

Specification	Detail
Frame	800 Series OCLV Carbon, Kammtail Virtual Foil (KVF) tube shaping, T47 threaded bottom bracket, integrated IsoSpeed, integrated fuel and hydration storage, full foil tube profiles
Fork	Speed Concept full foil carbon, integrated brake and stem
Drivetrain	Shimano Ultegra Di2, 2×12-speed wireless electronic shifting
Crankset	Shimano Ultegra R8100, 52/36 chainrings (length varies by frame size)
Bottom Bracket	Praxis, T47 threaded, internal bearing
Wheels	Bontrager Aeolus Pro 51, OCLV Carbon, Tubeless Ready, 51mm rim depth, thru-axle front and rear
Tyres	Bontrager R3 Hard-Case Lite, aramid bead, 120 TPI, 700x25c
Brakes	Hydraulic disc, integrated
Saddle	Bontrager Hilo Comp, triathlon-specific, aggressive aero position
Weight	8.97 kg / 19.78 lbs (Medium frame)

Trek Speed Concept SLR 7 Performance on the Course

The Trek Speed Concept SLR 7 earns its place among the fastest triathlon bikes available today, and every element of its design exists to reduce drag and keep you moving at race pace. The 800 Series OCLV Carbon frame uses Trek’s Kammtail Virtual Foil tube shaping, a profile that creates the aerodynamic advantage of a true aerofoil without the structural compromises of an ultra-thin trailing edge. The result is a stiff, responsive frameset that slices through the air efficiently whether you are riding in a headwind, a crosswind, or favourable conditions. Trek’s engineers validated this platform across thousands of computer-generated design iterations and wind tunnel sessions, and the Trek Speed Concept SLR 7 is built to reflect every one of those hours of development work. Browse our full range of performance road and triathlon bikes at Enduroplanet, South Africa’s dedicated performance cycling destination.IsoSpeed technology, integrated into the seat tube and top tube junction with a forward pivot optimised for a triathlete’s weight distribution, delivers a measurable improvement in ride comfort without softening the frame’s power transfer. This matters enormously over the full-distance bike leg of a triathlon, where cumulative fatigue from road vibration can cost you significant time and energy on the run. The Bontrager Aeolus Pro 51 OCLV Carbon wheels complement the frame’s aerodynamic profile with a 51mm deep rim section that maintains speed between pedal strokes, while still offering the handling confidence needed on technical descents or windy race courses. Paired with Bontrager R3 Hard-Case Lite 700x25c tubeless-ready tyres, the Trek Speed Concept SLR 7 delivers a fast, reliable rolling platform that requires minimal maintenance between race events.The Shimano Ultegra Di2 12-speed wireless electronic drivetrain is a highlight of this build, offering crisp, repeatable shifts that can be triggered without breaking position or sacrificing power output. The 52/36 crankset paired with Shimano’s 12-speed cassette provides a wide, well-spaced gear range that handles both flat, high-speed sections and undulating race courses with equal composure. Integrated fuel and hydration storage built directly into the frame and cockpit means that the Trek Speed Concept SLR 7 keeps you aero and fuelled throughout the bike leg, without the aerodynamic penalty of externally mounted bottles or bags. As noted in coverage on BikeRadar’s Trek Speed Concept review, the new Speed Concept platform is claimed to save around six minutes over the 180km Kona bike course compared to Trek’s previous generation, a significant performance advantage backed by wind tunnel data.

5 Reasons You’ll Want the Trek Speed Concept SLR 7

• Wind-cheating KVF carbon frame: The 800 Series OCLV Carbon frame with Kammtail Virtual Foil tube shaping gives you genuine aerodynamic speed that compound over every kilometre of a race, without adding unnecessary weight to the package.
• IsoSpeed comfort for the long haul: The integrated IsoSpeed decoupler reduces road vibration at the seat tube junction so your legs arrive at the run feeling fresher, giving you a real performance advantage in the later stages of a triathlon.
• Precise Shimano Ultegra Di2 shifting: The 12-speed wireless electronic drivetrain delivers instant, accurate gear changes at the touch of a button, allowing you to stay focused on your effort and your position rather than wrestling with mechanical shifting.
• Deep-section carbon wheels that sustain speed: The Bontrager Aeolus Pro 51 OCLV Carbon wheels maintain momentum between pedal strokes and cut drag at speed, so you carry more velocity out of every corner and across every flat section of the course.
• Fully integrated cockpit and storage: The integrated handlebar, stem, and onboard fuel and hydration storage system removes external accessories from the airstream, keeping the entire rider-and-bike system as aero as possible from the moment you leave transition.

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