2025 Trek Madone SL 5 Gen 8 Road Bike

£2,600.00
Was £3,250.00

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The 2025 Trek Madone SL 5 Gen 8 Road Bike 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.

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.

The Madone SL 5 comes with 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.

This bike is perfect for

Road cyclists who want a featherweight road race bike without top-end race pricing. You're up for racing, club rides or solo spins up 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.

Key Features

  • 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

Price Match at Cycles uk

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Trek made their first bikes in 1976 in a barn in Wisconsin. Now they’re one of the biggest bike brands in the world. Trek bikes cover everything from professional-level road and mountain bike race bikes to commuters, hybrids and kids bikes. There is a strong heritage of racing at Trek and many Trek bikes have a strong race influence. They take a very scientific approach to researching bike and human performance and then make the fastest and most efficient bikes they can.

It doesn’t stop their attention and passion for cycling flows through everything they do. Since the 1990s, Trek has supported Places for Bikes. Places for Bikes is an advocacy organisation in the USA that gets more people on bikes more often! Places for Bikes ethos falls in line with the companies mission statement to:

Build only products we love. Provide incredible hospitality to our customers, and change the world by getting more people on bikes.

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

Shifter - Shimano 105 R7120, 12-speed

Front derailleur - Shimano 105 R7100, braze-on, down swing

Rear derailleur - Shimano 105 R7100, 36T max cog

Crank - Shimano 105 R7100, 50/34

Bottom bracket - Praxis, T47 threaded, internal bearing

Cassette - Shimano 105 7101, 11-34, 12-speed

Chain - Shimano SLX M7100, 12-speed

Wheel front - Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 100x12 mm thru axle

Wheel rear - Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 142x12 mm thru axle

Hub front - Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle

Skewer front - Bontrager Switch chamfered thru axle, removable lever

Hub rear - Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle

Skewer rear - Bontrager Switch chamfered thru axle, removable lever

Rim - Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve

Spokes - 14 g stainless steel, black

Tyre - Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x28 mm Max tyre size - 32 mm

Saddle - Bontrager Aeolus Comp, steel rails

Seatpost - Madone aero carbon seat post, 0 mm offset

Handlebar - Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop
Stem - Trek RCS Pro, -7-degree

Brake rotor - Shimano RT70, CentreLock, 160 mm

Rotor size - Max brake rotor sizes: 180 mm front, 160 mm rear

Weight - ML Size - 8.70 kg / 19.19 lbs (with tubes)

Weight limit - This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).

Colours HEX BLUE, MATTE DEEP SMOKE
Sizes L, M, ML, S, XL, XS
Brand TREK
Model Year 2025
Barcodes 601842991589, 601842991596, 601842991602, 601842991619, 601842991626, 601842991633, 601842991640, 601842991657, 601842991664, 601842991671, 601842991688, 601842991695
SKUs / Part Numbers 5319920, 5319921, 5319922, 5319923, 5319924, 5319925, 5319926, 5319927, 5319928, 5319929, 5319930, 5319931

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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