Trek Madone SL 5 (Gen 8) Performance Road Bike 2026

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.

TECHNICAL SPECIFICATIONS

*Please note - spec applies to all sizes unless listed separately

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

Weight
Weight
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).

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, ML
Shimano 105 R7100, 50/34, 170mm length
Size: L, XL
Shimano 105 R7100, 50/34, 172.5mm 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
Hub front
Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Skewer front
Bontrager Switch chamfered thru axle
Hub rear
Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle
Skewer rear
Bontrager Switch chamfered thru axle, removable lever
Rim
Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve
Tire
Bontrager Aeolus Pro, Tubeless Ready, aramid bead, 120tpi, 700x28mm
Tire part
Bontrager TLR sealant, 180 ml/6 oz
Max tire size
32mm (as measured, see manual for details)

Components
Saddle
Bontrager Aeolus Elite, austenite rails, 145mm width
Seatpost
Madone aero carbon seatpost, 0mm offset, short length
*Handlebar
Size: XS
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 36cm control width, 40cm drop width
Size: S, M
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 38cm control width, 42cm drop width
Size: ML, L
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop width
Size: XL
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 42cm control width, 46cm drop width
Handlebar tape
Trek EcoTack
*Stem
Size: XS
Trek RCS Pro, -7 degree, 80mm length
Size: S, M
Trek RCS Pro, -7 degree, 90mm length
Size: ML, L
Trek RCS Pro, -7 degree, 100mm length
Size: XL
Trek RCS Pro, -7 degree, 110mm length
Brake
Shimano 105 hydraulic disc, flat mount
Brake rotor
Shimano CL700, centerlock, 160mm
Rotor size
Max brake rotor sizes: 180mm front, 160mm 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, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

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