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Trek Madone SL 6 Road Bike 2019

★★★★★ ★★★★★

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Product ID: 910533

Incredible aesthetics and outstanding performance - the Trek Madone SL 6 Road Bike has it all.

The ultimate race-ready bike in a great value package, the Madone SL 6 is designed for speed. IsoSpeed decoupling and a lightweight Trek 500 series OCLV carbon frame provide the perfect blend of stiffness, strength and compliance, and Kammtail Virtual Foil tubes improve aerodynamics so you slice through the wind. Shimano's Ultegra groupset with integrated Madone aero brakes make for smooth shifting and powerful braking, and internal cable routing keeps this bike looking sleek.

Why buy your bike from Sigma Sports?

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Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.

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Built, Checked, Tuned and Tested

All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.

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We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.

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We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.

Trek Madone SL 6 Road Bike 2019

Aerodynamic, light, stiff and compliant; introducing the Trek Madone SL 6 Road Bike. Boasting the same performance attributes and ride quality as every Madone model, the SL 6 comes with a standard stem and aero bar for improved adjustability and the ability to add clip-on bars for time trials and triathlons. Made not only for riding fast, this is a bike that looks the part, with incredible aesthetics and sleek lines, enhanced by internal cable routing.

The frame itself is constructed from Trek's patented 500 Series OCLV (Optimum Compaction Low Void—process) carbon. Incorporating 25 years of experience building carbon fibre bikes, this material is stiff and strong while retaining a low weight. The Madone IsoSpeed decoupler increases vertical compliance significantly, allowing the seat tube to rotate independently from the top-tube-to-seatstay junction with no compromise on pedalling efficiency. KVF (Kammtail Virtual Foil) tube shapes were developed using Computational Fluid Dynamics (CFD) and are highly aerodynamic.

The fork features KVF legs that minimise drag, and moulded carbon dropouts that reduce weight. This fork design is laterally stiff and ensures handling is super sharp and responsive. A micro-adjust seat mast lowers weight, improves strength and aerodynamics and is simple to use. You'll be able to dial in your lowest-profile position with ease.

The geometry is designed around Trek's H2 fit, one that suits the majority of riders - both amateurs and pros - and will position you optimally for power transfer and performance.

Built up with a Shimano Ultegra drivetrain, you can be sure of fast, smooth and precise shifting across the range of gears - with plenty of options for long, steep climbs and fast descents. Madone brakes are seamlessly integrated into the frame, cutting drag, increasing speed and shaving off extra grams. Both brake and shift cables are internally routed for sleek aesthetics and an aerodynamic advantage. Vector Wings ensure the leading cables and front brake caliper are enclosed, so everything possible is hidden away from the wind.

Kitted out with Bontrager Aeolus Comp wheels and R2 Hard-Case Lite 25mm clinchers, you'll roll fast and smooth. If you're looking to convert to tubeless, these wheels are ready to do just that.


  • 500 Series OCLV frame for a balance of low weight, strength and stiffness
  • Trek IsoSpeed decoupler allows the seat tube to rotate independently from the top-to-seatstay junction, increasing vertical compliance
  • KVF (Kammtail Virtual Foil) aerodynamic fork and tube shapes
  • Bontrager Blendr compatible stem so you can clip your gear directly on for clean looks and user friendliness
  • Shimano Ultegra drivetrain and integrated Madone brakes

Technical Specification

FRAME Trek 500 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, Madone Rear IsoSpeed, Micro-adjust seatmast, tapered head tube, BB90, direct mount rim brakes, invisible cable routing, control centre, precision water bottle placement, Aero 3S chain keeper, DuoTrap S compatible
FORK Trek Madone KVF full carbon, carbon tapered steerer, carbon dropouts, Madone integrated brake
STEM Bontrager Pro, 31.8 mm, 7-degree, with computer and light mounts
HANDLEBAR Bontrager Elite Aero VR-CF, 31.8 mm
FRONT BRAKE Trek Madone aero, integrated
REAR BRAKE Trek Madone aero, integrated
BRAKE LEVERS Shimano Ultegra
FRONT DERAILLEUR Shimano Ultegra, braze-on
SHIFT LEVERS Shimano Ultegra, 11 speed
CASSETTE Shimano Ultegra, 11-28, 11-speed
CRANKSET Shimano Ultegra, 50/34 (compact)
FRONT WHEEL Bontrager Aeolus Comp, Tubeless-ready
REAR WHEEL Bontrager Aeolus Comp, Tubeless-ready
FRONT TYRE Bontrager R2 Hard-Case Lite, 700x25c, clincher
REAR TYRE Bontrager R2 Hard-Case Lite, 700x25c, clincher
SADDLE Bontrager Montrose Comp, chromoly rails
SEATPOST Trek Madone Micro-adjust carbon seatmast cap, 25mm offset
WEIGHT 56cm - 8.2kg

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if specified), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.

Trek Madone SL 6 Road Bike 2019 Sizing

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