Trek Madone SL 6 Gen 8 Road Bike (2026)

Trek Madone SL 6 Gen 8 Road Bike in Black. Trek Reference: 5337989

The Madone SL 6 Gen 8 is a road bike that combines aerodynamics, lightness, and comfort at a more accessible price. It features a 500 Series OCLV carbon frame with the same IsoFlow technology as the higher-end models, but with an optimized build that maintains performance while reducing cost. The Shimano 105 Di2 wireless groupset delivers precise electronic shifting, while Bontrager Aeolus Elite 50 carbon wheels stay stiff and lightweight on any terrain.

Specifications

Frameset

• Frame: 500 Series OCLV Carbon, Full System Foil tube shapes, IsoFlow seat tube, RCS headset, electronic or mechanical cable routing, removable aero chain guide, T47 bottom bracket, flat mount disc, UDH, 142x12mm thru-axle
• Fork: Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, beveled 12x100 thru-axle mm

Wheels

• Front Wheel: Bontrager Aeolus Elite 50, OCLV Carbon, Tubeless Ready, 100x12mm thru-axle
• Rear Wheel: Bontrager Aeolus Elite 50, OCLV Carbon, Tubeless Ready, 50mm rim depth, Shimano 11-speed freehub, 142x12mm thru-axle
• Front skewer: Bontrager Switch beveled thru-axle
• Rear skewer: Bontrager Switch beveled thru-axle, removable lever
• Tire: Bontrager R3 Hard-Case Lite, Tubeless Ready, Aramid bead, 170 tpi, 700x28mm
• Max. Tire depth: 32 mm (according to measurements, see manual)

Transmission

• Front derailleur: Shimano 105 R7150 Di2, brazed-on type, bottom bracket
• Rear derailleur: Shimano 105 R7150 Di2, max. 36T
• BB: Shimano 105 R7100, 50/34, 170mm length (size M)
• BB: Praxis, T47 threaded, internal bearing
• Cassette: Shimano 105 7101, 11-34, 12-speed
• Chain: Shimano SLX M7100, 12-speed
• Maximum chainring size: 1x: 54T, 2x: 56/43

Components

• Saddle: Bontrager Aeolus Elite, austenite rails, 145mm width
• Seatpost: Madone aero carbon integrated post, offset 0mm, short
• Handlebar: Bontrager Comp, alloy, 31.8mm, 80mm offset, 121mm drop, 38cm lever width, 42cm handlebar end width (size M)
• Bar tape: Trek EcoTack
• Stem: Trek RCS Pro, -7 degrees, 90mm rise (size M)
• Maximum disc size: 180mm front, 160mm rear

Weight

• Weight limit: This bike has a maximum combined weight limit (bicycle, rider, and cargo) of 125kg.