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Trek

Trek Madone SL 6 Gen 8 Road Bike – 2026

£4,000.00

Trek Madone SL 6 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 comfortable on the climbs and perched for the attack. A Shimano 105 Di2 electronic group set keeps the price down without sacrificing lightning-fast electronic shifting. Plus, it’s topped off with carbon wheels for extra lightweight performance. Size or colour not shown? Message us

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  • Built and checked in our workshop
  • Free collection in Limavady or courier delivery across Northern Ireland, the UK & Ireland
Description
Frame500 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
ForkMadone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat-mount disc, 12×100 mm chamfered thru axle
WeightML – 8.16 kg / 17.99 lbs (with TLR sealant, no tubes)
Weight limitThis bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).
Front derailleurShimano 105 R7150 Di2, braze-on, down swing
Rear derailleurShimano 105 R7150 Di2, 36T max cog
CrankSize: XS, S
Shimano 105 R7100, 50/34, 165 mm length
Size: M, ML
Shimano 105 R7100, 50/34, 170 mm length
Size: L, XL
Shimano 105 R7100, 50/34, 172.5 mm length
Bottom bracketPraxis, T47 threaded, internal bearing
CassetteShimano 105 7101, 11-34, 12-speed
ChainShimano SLX M7100, 12-speed
Max. chainring size1x: 54T, 2x: 56/43
Wheel frontBontrager Aeolus Elite 50, OCLV Carbon, Tubeless Ready, 100×12 mm thru axle
Wheel rearBontrager Aeolus Elite 50, OCLV Carbon, Tubeless Ready, 50 mm rim depth, Shimano 11-speed freehub, 142×12 mm thru axle
Skewer frontBontrager Switch chamfered thru axle
Skewer rearBontrager Switch chamfered thru axle, removable lever
TyreBontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 170 tpi, 700×28 mm
Rim stripBontrager TLR
Max tyre size32 mm (as measured, see manual for details)
SaddleBontrager Aeolus Elite, austenite rails, 145 mm width
SeatpostMadone aero carbon seat post, 0 mm offset, short length
HandlebarSize: 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
Handlebar tapeTrek EcoTack
StemSize: 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
Rotor sizeMax brake rotor sizes: 180 mm front, 160 mm rear

Good to know: manufacturers sometimes change specs, components, colours and graphics during a model year, so what you receive may differ slightly from the photos. If a detail matters to you, ask us before you buy and we'll check it for you.