Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2025 Trek Madone SL 6 Gen 8
Estimated used market value
$4,354 - $4,479
Actual value depends on condition, size, and local demand.
Value Guide market data · 2025 Trek Madone SL 6 Gen 8
12-month projected trend
7%
Direction and magnitude, not judgment
vs. category average
6%
Drops faster than category avg
Price over time - 2025 Trek Madone SL 6 Gen 8
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Madone model years
Compare Madone SL 6 Gen 8 models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
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. - Revolutionary Full System Foil aero tube shapes redefine what fast looks like and help optimize aerodynamics around the whole bike - A more economical 500 Series OCLV Carbon frame and new tube shaping shave weight where it matters most to help you fly up climbs - Carbon wheels keep weight down and performance up, so you can crush climbs and soar down descents - You get lightning-fast shifts that stay crisp and clean thanks to Shimano's Di2 tech trickling down to their 105 groupset - Lightweight, race-focused IsoFlow comfort tech helps you ride stronger longer without sacrificing weight or aerodynamics - This bike comes set up tubeless — a first in Trek performance road history
Specifications
- Subtype
- Performance
- Category
- Road
- Component Fork
- Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle
- Component Hubs
- Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, 100x12mm thru axle
- Component Rims
- Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, 100x12mm thru axle
- Component Size
- X-Small, Small, Medium, Medium/Large, Large, X-Large
- Component Stem
- Trek RCS Pro, -7 degree, 100mm length
- Product Family
- Madone
- Component Chain
- Shimano SLX M7100, 12 speed
- Component Color
- Crimson, Matte Dark Web, White Prismatic
- Component 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
- Component Rotors
- Shimano RT70, centerlock, 160mm
- Component Saddle
- Bontrager Aeolus Comp, steel rails, 145mm width
- Component Crankset
- Shimano 105 R7100, 50/34, 172.5mm length
- Component Seatpost
- Size: XS, S, M Madone aero carbon seatpost, 0mm offset, short length Size: ML, L, XL Madone aero carbon seatpost, 0mm offset, long length
- Component Shifters
- Shimano 105 R7170 Di2, 12 speed // Shimano 105 R7170 Di2, 12 speed
- Component Handlebar
- Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop width
- Component Rear Tire
- Bontrager R3 Hard-Case Lite, aramid bead, 170 tpi, 700x28mm
- Component Wheel Set
- Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, 100x12mm thru axle /
- Component Front Tire
- Bontrager R3 Hard-Case Lite, aramid bead, 170 tpi, 700x28mm
- Component Tape Grips
- Trek EcoTack, black
- Component Wheel Size
- 700c
- Component Bottom Bracket
- Praxis, T47 threaded, internal bearing
- Component Rear Derailleur
- Shimano R7150 Di2, 36T max cog
- Component Front Derailleur
- Shimano 105 R7150 Di2, braze-on, down swing
- Component Cassette Freewheel
- Shimano 105 7101, 11-34, 12 speed
- Hubs
- Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, 100x12mm thru axle
- Rims
- Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, 100x12mm thru axle
- Crankset
- Shimano 105 R7100, 50/34, 172.5mm length
- Bottom Bracket
- Praxis, T47 threaded, internal bearing
- Chain
- Shimano SLX M7100, 12 speed
- Seatpost
- Size: XS, S, M Madone aero carbon seatpost, 0mm offset, short length Size: ML, L, XL Madone aero carbon seatpost, 0mm offset, long length
- Saddle
- Bontrager Aeolus Comp, steel rails, 145mm width
- Handlebar
- Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop width
- Front Derailleur
- Shimano 105 R7150 Di2, braze-on, down swing
- Rear Derailleur
- Shimano R7150 Di2, 36T max cog
- Rear Tire
- Bontrager R3 Hard-Case Lite, aramid bead, 170 tpi, 700x28mm
- Stem
- Trek RCS Pro, -7 degree, 100mm length
- Fork
- Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle
- 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
- Shifters
- Shimano 105 R7170 Di2, 12 speed // Shimano 105 R7170 Di2, 12 speed
- Tape/Grips
- Trek EcoTack, black
- Color
- White Prismatic
- Size
- X-Large
- Wheel Size
- 700c
- Cassette/Freewheel
- Shimano 105 7101, 11-34, 12 speed
- Rotors
- Shimano RT70, centerlock, 160mm
- Wheel Set
- Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, 100x12mm thru axle /
- Front Tire
- Bontrager R3 Hard-Case Lite, aramid bead, 170 tpi, 700x28mm
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.