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2025 Madone SL 6 Gen 8 Road Bike

$4,799.93 $4,999.97
SKU: TRE301805448  |  Barcode: 197216023685
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  • Our lightest Madone SL Disc ever

    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

    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

    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

    Rooted in racing

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

  • Adjustable aero cockpit

    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 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

    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.

Overview

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 layup 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 groupset keeps the price down without sacrificing lightning-fast electronic shifting. Plus, it's topped off with carbon wheels for extra lightweight performance.

Technical Specifications

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 ML - 8.16 kg / 17.99 lbs (with TLR sealant, no tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).
Battery Shimano BT-DN300
Charger Charging cable included
Shifter Shimano 105 R7170 Di2, 12 speed
Front derailleur Shimano 105 R7150 Di2, braze-on, down swing
Rear derailleur Shimano R7150 Di2, 36T max cog
*crank Size: XS, S Shimano 105 R7100, 50/34, 165mm lengthSize: M Shimano 105 R7100, 50/34, 170mm lengthSize: ML, L Shimano 105 R7100, 50/34, 172.5mm lengthSize: 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
Wheel front Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, 100x12mm thru axle
Wheel rear Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, Shimano 11/12-speed freehub, 142x12mm thru axle
Skewer front Bontrager Switch chamfered thru axle
Skewer rear Bontrager Switch chamfered thru axle, removable lever
Tire Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 170 tpi, 700x28mm
Tire part Bontrager TLR sealant, 6oz
Rim strip Bontrager TLR
Max tire size 32mm (as measured, see manual for details)
*saddle Size: XS, S Bontrager Aeolus Comp, steel rails, 155mm widthSize: XS, S, M, ML, L, XL Verse Short, steel rails, 145mm widthSize: M, ML, L, XL Bontrager Aeolus Comp, steel rails, 145mm width
*seatpost Size: XS, S, M, XL Madone aero carbon seatpost, 0mm offset, short lengthSize: ML, L Madone aero carbon seatpost, 0mm offset, long length
*handlebar Size: XS Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 36cm control width, 40cm drop widthSize: S, M Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 38cm control width, 42cm drop widthSize: ML, L Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop widthSize: XL Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 42cm control width, 46cm drop width
Handlebar tape Trek EcoTack, black
*stem Size: XS Trek RCS Pro, -7 degree, 80mm lengthSize: S, M Trek RCS Pro, -7 degree, 90mm lengthSize: ML, L Trek RCS Pro, -7 degree, 100mm lengthSize: XL Trek RCS Pro, -7 degree, 110mm length
Brake rotor Shimano RT70, centerlock, 160mm
Rotor size Max brake rotor sizes: 180mm front, 160mm rear

Parts are subject to change without notice. Chat with us if you have any questions.

Geometry

Bike geometry diagram

All measurements provided in cm unless otherwise noted.

Frame size letter XSSMMLLXL
Wheel size 700c700c700c700c700c700c
A — Seat tube 40.444.047.651.254.860.9
B — Seat tube angle (degrees)73.8°73.8°73.6°73.4°73.4°73.4°
C — Head tube length 10.012.113.615.017.220.1
D — Head angle (degrees)71.6°72.2°72.9°73.5°73.8°73.9°
E — Effective top tube 51.753.254.555.756.858.4
G — Bottom bracket drop 7.27.27.07.06.86.8
H — Chainstay length 41.041.041.041.041.141.2
I — Offset 5.04.54.54.04.04.0
J — Trail 6.16.25.85.95.75.7
K — Wheelbase 97.197.698.198.099.0100.7
L — Standover 70.473.476.279.082.086.3
M — Frame reach 37.037.838.438.939.440.2
N — Frame stack 50.753.054.656.258.261.0
Saddle rail height min (w/short mast) 54.958.562.165.769.375.4
Saddle rail height max (w/short mast) 61.264.868.472.075.681.7
Saddle rail height min (w/tall mast) 59.262.866.470.073.679.7
Saddle rail height max (w/tall mast) 65.469.072.676.279.885.9

This Geometry Chart is provided by the Manufactuer. Chat with us if you have any questions.

Sizing

sizeinchescm
XS (47cm)4'8" - 5'2"143 - 158
S (50cm)5'2" - 5'4"158 - 162
M (52-54cm)5'4" - 5'8"162 - 173
ML (56cm)5'8" - 5'10"173 - 179
L (58cm)5'10" - 6'2"179 - 188
XL (60-62cm)6'2" - 7'0"188 - 213

Sizing to be used as a reference only. Chat with us if you have any questions.

Madone SL 6 Gen 8
Trek

2025 Madone SL 6 Gen 8 Road Bike

$4,799.93 $4,999.97
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 layup 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 groupset keeps the price down without sacrificing lightning-fast electronic shifting. Plus, it's topped off with carbon wheels for extra lightweight performance.

Color

Size

  • XS
  • S
  • M
  • ML
  • L
  • XL
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