Great bike, noticeably faster at speed. Comfortable with the Isoflow triangle at the back. Head turned.
Product Details
Trek Madone SLR 9 AXS Gen 8 Road Bike
If you live for racing and demand the best road race bike, the Madone SLR 9 AXS Gen 8 offers a perfect blend of aerodynamics, comfort, and lightweight performance. Crafted from our top-tier 900 Series OCLV Carbon with aero tubing and IsoFlow comfort technology, this bike ensures optimal speed and comfort. It features SRAM's latest RED AXS E1 drivetrain and power meter for precise, customizable shifting and enhanced training data.
The road bike includes RSL Aero Bottles and Cages for improved aerodynamics, Bontrager Aeolus RSL 51 tubeless carbon wheels, and a Trek Aero RSL one-piece bar/stem. Designed for superbike performance, the Madone SLR 9 AXS Gen 8 excels in climbs, descents, and everything in between, with top components that leave no room for compromise.
Features
- Frame: 900 Series OCLV Carbon, Full System Foil tube shaping, IsoFlow seat tube, RCS Headset System, electronic-only 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: ML – 7.00 kg/15.44 lb (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).
- Battery: SRAM eTap battery pack (with charger)
- Shifter: SRAM RED AXS E1
- Front derailleur: SRAM RED AXS E1, braze-on
- Rear derailleur: SRAM RED AXS E1, 36T max cog
- Crank: SRAM RED AXS E1, power meter, 48/35, DUB
- Bottom bracket: SRAM DUB, T47 threaded, internal bearing
- Cassette: SRAM RED XG-1290 E1, 10-33, 12-speed
- Chain: SRAM RED E1, 12-speed
- Max. chainring size: 1x 54T, 2x 56/43
- Wheel front: Bontrager Aeolus RSL 51, OCLV Carbon, Tubeless Ready, 51 mm rim depth, 100x12 mm thru axle
- Wheel rear: Bontrager Aeolus RSL 51, OCLV Carbon, Tubeless Ready, 51 mm rim depth, Shimano 11/12 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 RSL 51, OCLV Carbon, Tubeless-Ready
- Tyre part: Bontrager TLR sealant, 180 ml/6 oz
- Max tyre size: 32 mm (as measured, see manual for details)
- Saddle: Aeolus RSL, carbon rails,
- Seatpost: Madone aero carbon seat post, 0 mm offset,
- Handlebar/stem (integrated): Trek Aero RSL Road integrated bar/stem, OCLV Carbon, Race Fit
- Rotor size: Max brake rotor sizes: 180 mm front, 160 mm rear
Highlights
- Full System Foil aero tube shapes optimize aerodynamics and redefine speed
- 900 Series OCLV carbon frame is extremely light, stiff for power, and compliant for comfort
- Carbon wheels reduce weight and enhance performance for climbing and descending
Specifications
- Model
- Madone SLR 9 AXS Gen 8
- Battery [Maker]
- SRAM
- Bottom Bracket [Maker]
- SRAM
- Bottom Bracket Standard
- T47
- Brakes [Kind]
- Hydraulic Disc
- Brakes [Maker]
- SRAM
- Brakes [Model]
- Red AXS E1
- Cassette [Gearing]
- 10-33
- Cassette [Maker]
- SRAM
- Cassette [Model]
- RED XG-1290 E1
- Chain [Maker]
- SRAM
- Chain [Model]
- RED E1
- Chainring [Gearing]
- 48/35
- Crank [Maker]
- SRAM
- Crank [Model]
- Red AXS E1
- Discipline Compatibility
- Road
- E-Bike
- No
- F Hub [Maker]
- Bontrager
- F Hub [Model]
- Aeolus RSL 51
- Family
- Madone
- FD [Maker]
- SRAM
- FD [Model]
- Red AXS E1
- Fenders Mounts
- No
- Fork [Axle Diameter]
- 12 mm
- Fork [Axle Type]
- 12x100mm Thru-Axle
- Fork [Brake Type]
- Disc
- Fork [Maker]
- Trek
- Fork [Material]
- Carbon
- Fork [Model]
- Madone Gen 8
- Fork [Wheel Size]
- 700c
- Frame [Hanger Standard]
- UDH
- Frame [Material]
- Carbon
- Frame [Tire Clearance]
- 32c mm
- Frameset
- No
- Gearing [Configuration]
- 2x
- Gearing [Kind]
- Conventional
- Gender
- Unisex
- Handlebar [Drop]
- 124 mm
- Handlebar [Kind]
- Drop
- Handlebar [Maker]
- Trek
- Handlebar [Material]
- Carbon
- Handlebar [Reach]
- 80 mm
- Handlebar [Shape]
- Drop bar
- Handlebar [Width]
- 420 mm
- Power Meter [Maker]
- SRAM
- Power Meter [Model]
- Red AXS E1
- R Hub [Maker]
- Bontrager
- R Hub [Model]
- Aeolus RSL 51
- Rack Mounts
- No
- RD [Maker]
- SRAM
- RD [Model]
- Red AXS E1
- Saddle [Maker]
- Bontrager
- Saddle [Material]
- Carbon
- Saddle [Width]
- 145 mm
- Seatpost [Kind]
- Rigid
- Seatpost [Maker]
- Trek
- Seatpost [Material]
- Carbon
- Seatpost [Offset]
- 0 mm
- Shifters [Maker]
- SRAM
- Shifters [Model]
- Red AXS E1
- Shifting
- Electronic
- Stem [Angle]
- -7 degree
- Stem [Length]
- 100 mm
- Stem [Maker]
- Trek
- Stem [Material]
- Carbon
- Sub Family
- Madone SLR
- Suspension Configuration
- Rigid
- Tires [Maker]
- Bontrager
- Tires [Width]
- 28 mm
- Wheels [Configuration]
- Front+Rear
- Wheels [Kinds]
- Tubeless Ready
- Wheelset [Inner Width]
- 21 mm
- Wheelset [Maker]
- Bontrager
- Wheelset [Material]
- Carbon
- Wheelset [Model]
- Aeolus RSL 51
- Product code
- 1933934 / 54354033967450
Size Guide

All measurements in mm unless otherwise stated.
Reviews
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
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About Trek
The best bike, ridden everywhere.
Founded in a Wisconsin barn in 1976, Trek has grown into one of the world's most recognised bicycle brands without losing the obsession that started it all: build the best bike, ride it further, share it with everyone.
Trek believes the bicycle is a simple solution to many of the world's most complicated problems. Every bike Trek builds — from the Madone race weapon to the Marlin trail bike — is made with that conviction. More riders, more often, on better bikes.









