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Trek
Trek Madone SL 5 Gen 8 Carbon Road Bike 2025
Trek Madone SL 5 Gen 8 Carbon Road Bike 2025
The Madone SL 5 Gen 8 is a lightweight aero road bike that brings elite racing tech to a lower price point. It offers similar aero benefits to the pricier Madone SLR Gen 8, but with a more economical OCLV 500 Carbon lay-up and two-piece cockpit with hidden cable routing. It's built to race, with geometry that keeps you quick on the sprints yet in control on fast descents. A Shimano 105 group set keeps the price down while still delivering clean mechanical shifting you can trust.
It's right for you if...
You want a featherweight road race bike without top-end race pricing. You're up for racing, club rides or solo spins up winding canyons, and don't want to compromise between climbing efficiency and aerodynamics. You're happy with more economical components that help you get on your dream bike faster.
The tech you get
An ultra-light OCLV 500 Carbon frame with aero tubing and IsoFlow comfort technology. A 2x12 Shimano 105 group set that delivers clean mechanical shifts without the faff of electronic group sets. Tubeless wheels that help fight punctures while reducing rolling resistance, and hydraulic disc brakes.
Why you'll love it
- The Revolutionary Full System Foil aero tube shapes redefine what fast looks like and help optimise aerodynamics around the whole bike
- A more economical 500 Series OCLV Carbon frame and new tube shaping shave weight where it matters most to help you fly up climbs
- You get clean and reliable shifting without breaking the bank with Shimano's workhorse group set – 105
- Lightweight, race-focused IsoFlow comfort tech helps you ride stronger longer without sacrificing weight or aerodynamics
The final word
The Madone SL 5 Gen 8 is the perfect bike for someone looking for superbike performance at a lower price point. It offers the same frame tech as its SLR sibling, like aero tube shaping and lightweight IsoFlow comfort tech, but with a more economical build that leaves budget to spare for race entry fees and bike trips.
Frame | 500 Series OCLV Carbon, Full System Foil tube shaping, IsoFlow seat tube, RCS Headset System, electronic or mechanical routing, removable aero chain keeper, T47 BB, flat mount disc, UDH, 142x12 mm thru axle |
Fork | Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle |
Shifters | Shimano 105 R7120, 12-speed |
Front derailleur | Shimano 105 R7100, braze-on, down swing |
Rear derailleur | Shimano 105 R7100, 36T max cog |
Chainset | Shimano 105 R7100, 50/34, |
Bottom bracket | Praxis, T47 threaded, internal bearing |
Chain | Shimano SLX M7100, 12-speed |
Cassette | Shimano 105 7101, 11-34, 12-speed |
Wheelset | Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width |
Hubs | Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle |
Spokes | 14 g stainless steel, black |
Tyres | Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x28 mm |
Brakes | Shimano RT70, CentreLock, 160 mm |
Handlebars | Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop |
Stem | Trek RCS Pro, -7-degree |
Saddle | Bontrager Aeolus Comp, steel rails |
Seatpost | Madone aero carbon seat post, 0 mm offset |
Pedals | None - SHOP PEDALS HERE |
Customer reviews
We aim to provide efficient delivery on all packages to mainland UK addresses. There are some areas where we will need to charge slightly more due to postage costs such as Highlands & Islands, Southern Ireland & Isle of Man.
Delivery is charged at £5.95 for standard delivery to UK mainland (see below for exceptions). Next working day delivery available for £6.95 if order before 1pm. Bikes are subject to £10.00 carriage charge. Exceptions can be found below. E-Bikes are subject to £30.00 carriage charge due to higher weight and value involved for insurance purposes.
Free delivery is available for orders over £75 and is a 2 working day service.
Orders placed before 12pm Monday to Thursday will be shipped the same day for next day delivery. Orders placed after 12pm Thursday and onwards will be shipped on Monday.
DUE TO THE CURRENT HIGH DEMAND, DELIVERY TIME FOR BIKES IS 7-10 DAYS. ALL PARTS AND ACCESSORIES ARE STILL 1-2 DAYS.
We use DPD for all our shipments:
DPD offer an excellent delivery service, with full tracking information and an hour time slot given on the day of delivery. You can also change the destination of your parcel, including local drop off points.
*Saturday delivery can be arranged at extra cost, please call for details.
SHIPPING EXCEPTIONS & SURCHARGES
Unfortunately due to the policies of our chosen shipping companies we regret that we will have to apply a separate charge to selected postcodes in the UK for some of our packages. If we need to apply this charge we will contact you after your order has been placed and work out the extra shipping charge. We do ship outwith the UK, please contact us for prices and options.
NORTHERN IRELAND POSTCODE SHIPPING EXCEPTIONS
Postcodes in Northern Ireland will carry a further charge for shipping, please contact for more details and prices.
ABERDEENSHIRE POSTCODE SHIPPING EXCEPTIONS
Postcodes in Aberdeenshire carry a further charge for large item shipping.
OUTER HEBRIDES POSTCODE SHIPPING EXCEPTIONS
Postcodes in the Outer Hebrides will carry a further charge for large item shipping, please contact for more details and prices.
INVERNESSHIRE POSTCODE SHIPPING EXCEPTIONS
Postcodes in Invernesshire carry a further charge for large item shipping.
KIRKWALL AREA POSTCODE SHIPPING EXCEPTIONS
Postcodes in the Kirkwall area carry a further charge for large item shipping shipping.
PAISLEY (WESTERN ISLES) POSTCODE SHIPPING EXCEPTIONS
Postcodes ranging from PA20 - PA80 in the Paisley & Western Isles will carry a further charge for large item shipping, please contact for more details and prices.
SHETLAND ISLES AREA SHIPPING EXCEPTIONS
Postcode within the Shetland Isles will carry a further charge for large item shipping, please contact for more details and prices.