Trek Madone SL 5 Gen 8 2025|XS|S|M|M/L|L|XL|Matte Deep Smoke|Hex Blue

Description

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 2×12 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.

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, 142×12 mm thru axle Fork Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle

Weight

Weight ML – 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).

Drivetrain

Shifter Shimano 105 R7120, 12-speed Front derailleur Shimano 105 R7100, braze-on, down swing Rear derailleur Shimano 105 R7100, 36T max cog *Crank Size:XS, S
Shimano 105 R7100, 50/34, 165mm length Size:M
Shimano 105 R7100, 50/34, 170mm length Size:ML, L
Shimano 105 R7100, 50/34, 172.5mm length Size:XL
Shimano 105 R7100, 50/34, 175mm length Bottom bracket Praxis, T47 threaded, internal bearing Cassette Shimano 105 7101, 11-34, 12-speed Chain Shimano SLX M7100, 12-speed Max. chainring size 1x: 54T, 2x: 56/43

Wheels

Wheel front Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 100×12 mm thru axle Wheel rear Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 142×12 mm thru axle Hub front Bontrager alloy, sealed bearing, CenterLock disc, 100×12 mm thru axle Skewer front Bontrager Switch chamfered thru axle, removable lever Hub rear Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142×12 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, 700×28 mm Max tyre size 32 mm (as measured, see manual for details)

Components

*Saddle Size:XS, S
Bontrager Aeolus Comp, steel rails, 155 mm width Size:M, ML, L, XL
Bontrager Aeolus Comp, steel rails, 145 mm width *Seatpost Size:XS, S, M
Madone aero carbon seat post, 0 mm offset, short length Size:ML, L, XL
Madone aero carbon seat post, 0 mm offset, long length *Handlebar Size:XS
Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 36 cm control width, 40 cm drop width Size:S, M
Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 38 cm control width, 42 cm drop width Size:ML, L
Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 40 cm control width, 44 cm drop width Size:XL
Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 42 cm control width, 46 cm drop width *Stem Size:XS
Trek RCS Pro, -7-degree, 80 mm length Size:S, M
Trek RCS Pro, -7-degree, 90 mm length Size:ML, L
Trek RCS Pro, -7-degree, 100 mm length Size:XL
Trek RCS Pro, -7-degree, 110 mm length Brake rotor Shimano RT70, CentreLock, 160 mm Rotor size Max brake rotor sizes: 180 mm front, 160 mm rear

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.