Best Triathlon Bikes
Argon 18 E117 Rival AXS Triathlon Bike
Retail price: £4,500
The reimagined Argon 18 E117 Rival AXS Triathlon Bike is engineered for dedicated triathletes chasing new personal bests. Purpose-built for speed and precision, it delivers pro-level performance in a fully equipped, high-value package.
3D System: Argon 18’s innovative 3D Technology expands the fit range without sacrificing safety, front-end stiffness, or sleek aesthetics.
- Argon Fit System: Tailored, size-specific geometry ensures every rider can achieve an optimal position for maximum efficiency and comfort.
- Triathlon & TT Geometry: With a forward, aero-optimised design, this frame promotes an aggressive racing posture, enhancing aerodynamic efficiency and top-end speed.
Cervelo P-Series 105 Di2 Triathlon Bike 2026
Retail price: £5,800
Drawing inspiration from the top of the range Cervelo P5 TT bike, the Cervelo P-Series 105 Di2 Triathlon Bike inherits the same extensive R&D—from wind-tunnel optimisation to real-world testing—to deliver exceptional speed.
The Profile Design Wing Super Sonic cockpit, aero-shaped extensions, and streamlined cable routing work together to minimise drag without limiting setup options.
Its D-shaped steerer and round-stem interface give you the freedom to choose your preferred basebar and extensions, making it easy to fine-tune a position that matches your riding style.
Beyond raw aerodynamics, the P-Series is thoughtfully engineered for the demands of triathlon. Expanded tyre clearance boosts comfort and stability on varied surfaces, while Cervelo’s internal frame storage keeps essentials—like a tube, multi-tool, and CO₂ canister—securely stowed inside the down tube.
A smart locking hatch ensures quick access even with a bottle mounted. Paired with the Smartpak 400 top-tube bento box, you get seamless, on-the-move fueling without disrupting airflow.
- Built on the aerodynamic foundations of the Cervelo P5, the P-Series 105 Di2 delivers exceptional speed through extensive wind-tunnel development and real-world testing.
- Profile Design Wing Super Sonic cockpit, aero extensions, and tidy cable routing minimise drag while allowing flexible cockpit setup and precise fit adjustment.
- Triathlon-ready design features expanded tyre clearance, integrated frame storage with a secure hatch, and the Smartpak 400 bento box for efficient on-the-move fueling.
Trek Speed Concept SLR 7 TT/Triathlon Bike 2026
Retail price: £7,599
More than just exceptionally fast, Trek’s Speed Concept SLR 7 TT/Triathlon Bike is built with practical, race-ready features that enhance performance over long distances. Its 800 Series OCLV Carbon frame uses Kammtail Virtual Foil tube shaping to cut drag while keeping weight low, paired with an equally aerodynamic carbon fork to help the front end slice cleanly through the wind.
For athletes tackling longer events, the elastomer-damped IsoSpeed system reduces road vibrations, helping to minimise fatigue during multi-hour efforts. Integrated storage in both the top tube and down tube carries nutrition and tools without compromising aerodynamics, and even the included Speed Concept bottle and cage are designed to work seamlessly with the frame.
The Speed Concept’s highly adjustable handlebar and stem system allows easy fine-tuning for rider fit or specific race demands, while the Bontrager Hilo Comp saddle supports a powerful, aerodynamic position that remains comfortable over extended rides.
Shimano’s latest 12-speed Di2 setup uses wireless communication between the shifters and the internal battery/derailleur system, creating a cleaner cockpit and simplifying travel. Shifts are fast and precise, and hydraulic disc brakes provide the confident cornering and descending control that many TT bikes lack.
Rounding out the build, the 51mm-deep Bontrager Aeolus Pro 51 carbon wheels deliver a strong balance of stability, low weight, and aerodynamic speed. Their tubeless-ready design also makes it easy to transition to a tubeless setup for improved performance and puncture protection.
- Trek 800 Series OCLV Carbon frame with Kammtail shaping, aerodynamic fork, and integrated storage delivers race-ready speed while reducing fatigue through the IsoSpeed vibration-damping system.
- Highly adjustable cockpit and Bontrager Hilo Comp saddle provide precise fit and long-distance comfort.
- Bontrager Aeolus Pro 51 carbon wheels offer a balanced mix of stability, low weight, and aerodynamic efficiency.
Factor SLICK Premium RED AXS Triathlon Bike
Retail price: £10,399
Equipped with SRAM RED AXS components, an integrated power meter, a Vision METRON TFA Aerobar, and the ultra-fast Black Inc Sixty-Two wheels, the Factor SLiCK Premium Red AXS Triathlon Bike is built to break personal records.
Developed with Factor’s advanced carbon expertise, it’s a pure triathlon machine engineered for exceptional aerodynamic performance. The aero-profiled frame—drawing inspiration from the OSTRO VAM and HANZŌ Track—pairs with Black Inc Sixty-Two wheels to deliver impressive speed and stable handling, even in harsh crosswinds.
Every tube shape is optimised for smooth airflow and maximum efficiency. Designed for real-world triathlon needs, the SLiCK integrates smart storage solutions, including an in-frame down tube bag for easy access to nutrition and repair essentials without disrupting aerodynamics.
- Built for record-breaking speed with SRAM RED AXS, an integrated power meter, a Vision METRON TFA Aerobar, and ultra-fast Black Inc Sixty-Two wheels.
- Advanced aero-focused carbon design—drawing from the OSTRO VAM and HANZŌ Track—delivers exceptional speed and stability, even in challenging crosswinds.
- Fully optimised tube shapes and integrated storage, including an in-frame down tube bag, provide real-world triathlon efficiency without compromising aerodynamics.
CUBE AERIUM C:68X SLT Aero TT Bike 2026
Retail price: £9,999
The CUBE Aerium C:68X SLT is built to deliver uncompromising aerodynamic efficiency. Evolving from CUBE’s medal-winning race platform and developed in collaboration with World Champion Lucy Charles-Barclay, it features the fastest and most refined frame CUBE has ever produced.
Profile Design ASC Pro extensions and CUBE’s integrated cockpit position the rider in an optimal aero tuck. The Newmen Streem Aero/Disc TT80/Disc Vonoa wheelset—with a carbon disc rear and deep-section front—paired with Schwalbe Pro One Aero tyres, maximises speed and stability, while SRAM S-900 Aero brakes provide powerful, low-drag stopping performance.
A SRAM RED AXS 1x12 drivetrain, SRAM RED crank with integrated power meter, and a CeramicSpeed waxed chain ensure crisp shifting and highly efficient power transfer, turning every watt into forward motion. Wind-tunnel tested and race-proven with Charles-Barclay’s input, the Aerium C:68X integrates its aero fork, disc brakes, and in-frame hydration and storage for seamless functionality.
Every detail is engineered to deliver maximum speed, efficiency, and confidence on race day.
- Developed with World Champion input, the Aerium C:68X SLT features CUBE’s fastest, most aerodynamic frame yet, refined through wind-tunnel testing and race-proven design.
- Integrated cockpit, Profile Design ASC Pro extensions, and the Newmen Streem Aero/Disc TT80/Disc Vonoa wheelset with Schwalbe Pro One Aero tyres maximise speed, stability, and low-drag braking performance.
- SRAM RED AXS 1x12 drivetrain, power-meter-equipped crank, and CeramicSpeed waxed chain deliver exceptionally efficient power transfer, supported by integrated hydration and storage for race-day functionality.
Cervelo P5 RED AXS 1 Triathlon Bike
Retail price: £12,000
For triathletes and time triallists chasing every second, the Cervélo P5 RED AXS 1 Triathlon Bike is a pure speed machine.
Reserve’s 77/88 Turbulent Aero wheels paired with 29mm Vittoria tyres minimise rolling resistance and improve stability in crosswinds. The low-drag Cervélo basebar, size-specific adjustable extensions, and the bike’s aggressive geometry help you lock in a powerful, sustainable aero position, while the fastback seatstays add welcome compliance for fresher legs off the bike.
A SRAM RED AXS 1×12 drivetrain with a power meter ensures seamless electronic shifting and accurate data, and the hydraulic disc brakes deliver confident stopping in any conditions. Integrated top-tube storage keeps nutrition within easy reach without compromising aerodynamics, making the P5 an elite choice for athletes who demand uncompromised speed.
- Reserve 77/88 Turbulent Aero wheels with 29mm Vittoria tyres reduce rolling resistance and boost crosswind stability, while the Cervélo basebar and adjustable extensions support a powerful, sustainable aero position.
- Aggressive geometry and fastback seatstays enhance aerodynamics and add compliance for improved comfort and fresher legs heading into the run.
- SRAM RED AXS 1×12 drivetrain with power meter delivers precise electronic shifting and accurate data, complemented by hydraulic disc brakes and integrated top-tube storage for race-ready efficiency.
