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2026 | Madone SL 5 Gen 8

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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 models, but with a more economical OCLV 500 Carbon layup and two-piece cockpit with hidden cable routing. A Shimano 105 groupset, alloy handlebars, and alloy wheels keep the price down while still delivering clean mechanical shifting you can trust.


Our lightest Madone SL Disc ever

    New light and fast aero tube shaping paired with light-yet-economical 500 Series OCLV Carbon makes Gen 8 our lightest Madone SL Disc f/s ever and the ideal climbing bike.


Redefines what fast looks like

    Revolutionary new Full System Foil aero tube shapes improve airflow over the whole bike while maintaining the lightness climbers crave. Plus, the bike’s entire rider system was meticulously designed and rigorously tested to be faster everywhere.




80% more vertically compliant IsoFlow

    We refined our race-focused comfort tech to be lighter and have nearly double the vertical compliance so you can ride stronger longer.


Rooted in racing

    Madone SL was informed by feedback from Lidl-Trek's fastest sprinters and climbers.


Adjustable aero cockpit

    Madone Gen 8 features hoods that are narrower than the drops so you can adjust your positioning to prioritize aerodynamics or power. Plus, the two-piece design lets you quickly and easily dial in your fit.


Add-on aero bottles to make your whole bike faster

    Add-on RSL Aero Bottles and Cages were designed with Madone Full System Foil aero shapes to make the whole rider system even faster.


Shimano 105 Di2

    With a shared Di2 platform inherited from Dura-Ace and Ultegra, sophisticated ergonomics, Shimano 105-optimized gear combinations, and an exceptional hydraulic disc brake system, Shimano 105 Di2 R7100 marks a new era of affordable, 12 speed electronic performance. You can set up the drivetrain just the way you like it via Shimano’s user-friendly E-Tube app.


Don’t forget your pedals

    This bike doesn’t come with pedals because you’ll have a better time on your new bike if you choose your own. See the pedal guide to find the best pedals for your riding style. We recommend clipless road pedals for control and efficiency.

SKU Trek_57653
Frame 500 Series OCLV Carbon, Full System Foil tube shaping, IsoFlow seat tube, RCS Headset System, electronic or mechanical routing, removable aero chainkeeper, T47 BB, flat mount disc, UDH, 142x12mm thru axle
Frame Material Carbon
Bottom Bracket Praxis, T47 threaded, internal bearing
Weight as Spec'd ML - 8.64 kg / 19.05 lbs (with tubes)
Weight Limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).
Brake - Brand Shimano
Brake Type Hydraulic disc
Brake Shimano 105 hydraulic disc, flat mount
Brake Rotor Shimano CL700, centerlock, 160mm
Brake Rotor Size Max brake rotor sizes: 180mm front, 160mm rear
Handlebar Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 42cm control width, 46cm drop width
Stem Trek RCS Pro, -7 degree, 110mm length
Saddle Bontrager Aeolus Elite, austenite rails, 145mm width
Seatpost Madone aero carbon seatpost, 0mm offset, short length
Drivetrain - Brand Shimano
Front Derailleur Shimano 105 R7100, braze-on, down swing
Rear Derailleur Shimano 105 R7100, 36T max cog
Crank Shimano 105 R7100, 50/34, 172.5mm length
Shifter Shimano 105 R7120, 12 speed // Shimano 105 R7120, 12 speed
Cassette Shimano 105 7101, 11-34, 12 speed
Chain Shimano SLX M7100, 12 speed
Fork - Brand Trek
Fork Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle
Wheel Size 700C
Tire Size - Max 32mm (as measured, see manual for details)
Wheel - Front /
Tires Bontrager Aeolus Pro, Tubeless Ready, aramid bead, 120tpi, 700x28mm
Tire Size 700x28c
Hub - Front Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Hub - Rear Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle
Skewer - Front Bontrager Switch chamfered thru axle
Skewer - Rear Bontrager Switch chamfered thru axle, removable lever
Rims Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve
Small Parts Bontrager TLR sealant, 180 ml/6 oz
_shipping-groups ACYP-ECY
Model Year 2026
BS Product Type Performance Road

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