Duathlon

Whether you’re a seasoned triathlete looking for a winter challenge or a runner ready to jump into the world of multisport, having the right gear is the difference between a PB and a painful transition.

Our curated collection of duathlon kit is designed to handle the unique "Run-Bike-Run" demands, keeping you aerodynamic on the saddle and agile on the pavement. Like to know more about Duathlon? Read our helpful guide. 
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2XU Women's Form Stash Hi-Rise Bike Shorts
2XU
Women's Form Stash Hi-Rise Bike Shorts
From £31.50
RRP £70.00 Save 55%
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Castelli PR 2 Short Sleeve Speed Suit
Castelli
PR 2 Short Sleeve Speed Suit
£192.00
RRP £360.00 Save 47%
Fizik Transiro Hydra Aeroweave Carbon Triathlon Cycling Shoes
Fizik
Transiro Hydra Aeroweave Carbon Triathlon Cycling Shoes
From £185.00
RRP £289.99 Save 36%
Factor SLICK Premium Frameset
Factor
SLICK Premium Frameset
£4,999.00
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Argon 18 E117 105 Triathlon Bike
Argon 18
E117 105 Triathlon Bike
  • Shimano 105 Groupset
  • DT Swiss E1800 Wheelset
  • 3D System
  • Argon Fit System
  • Triathlon and TT Geometry
£3,900.00
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On Running Performance Running Cap
On Running
Performance Running Cap
£46.75
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On Running Performance Running Cap
On Running
Performance Running Cap
£55.00
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Castelli Tri Shorts
Castelli
Tri Shorts
£95.00
RRP £125.00 Save 24%
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On Running Women's Performance Long Sleeve Running T-Shirt
On Running
Women's Performance Long Sleeve Running T-Shirt
From £64.00
RRP £80.00 Save 20%
Zone3 Activate Trisuit
Zone3
Activate Trisuit
£77.00
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2XU Women's Light Speed Mid-Rise Comp Tights
2XU
Women's Light Speed Mid-Rise Comp Tights
£88.00
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On Running Merino Wool Beanie
On Running
Merino Wool Beanie
£42.50
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CUBE Aerium C:68X Race Dura Ace/Ultegra Di2 Triathlon Bike
CUBE
Aerium C:68X Race Dura Ace/Ultegra Di2 Triathlon Bike
£6,299.00
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Zone3 Transition Backpack
Zone3
Transition Backpack
From £27.00
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On Running Performance Lumos T-Shirt
On Running
Performance Lumos T-Shirt
£72.25
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On Running 5
On Running
5" Performance 2/1 Running Shorts
£63.75
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On Running Women's Core 2-In-1 Crop Top
On Running
Women's Core 2-In-1 Crop Top
£42.50
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Argon 18 E-119 Tri+ Disc Ultegra Di2 Triathlon Bike
Argon 18
E-119 Tri+ Disc Ultegra Di2 Triathlon Bike
  • Shimano Ultegra Di2 Groupset
  • DT Swiss ARC 1400 Wheelset
  • 3D System
  • Argon Fit System
  • Triathlon and TT Geometry
£9,600.00
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2XU Aero Long Sleeve Womens Run Top
2XU
Aero Long Sleeve Womens Run Top
£31.50
RRP £35.00 Save 10%

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Master the Run-Bike-Run with Specialised Duathlon Clothing

Unlike a standard triathlon, a duathlon skips the swim, meaning you can focus entirely on temperature regulation and transition speed. Our range of duathlon clothing features technical fabrics that wick sweat during the opening run and provide wind protection for the cycling leg.

Essential Kit for Every Duathlete

Tri Suits: The ultimate "set and forget" option. A tri suit features a thin, run-friendly chamois that provides comfort on the bike without feeling like a bulky diaper during your runs.

Compression Wear: Fight muscle fatigue across two separate running legs with graduated compression tights and socks.

Weather-Ready Layers: Duathlons often take place in the "shoulder seasons." We stock lightweight gilets, arm warmers, and packable windproof jackets that are easy to shed or add in transition.

Elastic Laces: Every second counts. Swap your standard laces for elastic versions to slip your running shoes on instantly during T1 and T2.

Traithlon Running Shoes: We stock premium run shoes from top brands like Brooks and New Balance to help you hit peak performance during your run. 

Shop by Experience Level

Beginner: Look for versatile pieces like duathlon shorts (same as tri-shorts) and breathable running tees that work for training and race day.

Intermediate: Upgrade to a sleeved tri suit for better aerodynamics and sun protection.

Elite: Explore carbon-plated running shoes and top-tier aero kit pieces like Bentoboxes designed for podium finishes.

Ready to race? Browse our full range of duathlon clothing and gear today and get free delivery on orders over £60. 
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