2025 TREK MADONE SL 6 GEN 8

Regular price $6,499.99

The 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.

*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 chain keeper, T47 BB, flat mount disc, UDH, 142x12 mm thru axle
Fork	Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle

Weight

Weight	ML - 8.16 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 125 kg (275 lb).

E-system

Battery	Shimano BT-DN300
Charger	Charging cable included

Drivetrain

*Shifter	Size: XS, S, M, ML, L, XL Shimano 105 R7170, 12-speed
*Shifter	Size: XS, S, M, ML, L, XL Shimano 105 R7170 Di2, 12-speed
Front derailleur	Shimano 105 R7150 Di2, braze-on, down swing
Rear derailleur	Shimano 105 R7150 Di2, 36T max cog
*Crank	Size: XS, S Shimano 105 R7100, 50/34, 165 mm length
	Size: M Shimano 105 R7100, 50/34, 170 mm length
	Size: ML, L Shimano 105 R7100, 50/34, 172.5 mm length
	Size: XL Shimano 105 R7100, 50/34, 175 mm 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

Wheel front	Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35 mm rim depth, 100x12 mm thru axle
Wheel rear	Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35 mm rim depth, Shimano 11/12-speed freehub, 142x12 mm thru axle
Skewer front	Bontrager Switch chamfered thru axle, removable lever
Skewer rear	Bontrager Switch chamfered thru axle, removable lever
Rim	Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35mm rim depth, 100x12mm thru axle
Tyre	Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 170 tpi, 700x28 mm
Tyre part	Bontrager TLR sealant, 180 ml/6 oz
Rim strip	Bontrager TLR
Max tyre size	32 mm (as measured, see manual for details)

Components

*Saddle	Size: XS, S Bontrager Aeolus Comp, steel rails, 155 mm width
	Size: XS, S, M, ML, L, XL Verse Short, steel rails, 145 mm width
	Size: M, ML, L, XL Bontrager Aeolus Comp, steel rails, 145 mm width
*Seatpost	Size: XS, S, M Madone aero carbon seat post, 0 mm offset, short length
*Seatpost	Size: ML, L, XL Madone aero carbon seat post, 0 mm offset, long length
*Handlebar	Size: 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 tape	Trek EcoTack, black
*Stem	Size: 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
Brake rotor	Shimano RT70, CentreLock, 160 mm
Rotor size	Max brake rotor sizes: 180 mm front, 160 mm 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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

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

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2025 TREK MADONE SL 6 GEN 8

Regular price $6,499.99

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2025 TREK MADONE SL 6 GEN 8

Regular price $6,499.99

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