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2025 Trek

Domane+ SLR 9

A carbon frame endurance e-bike with ultra high-end components and shimano dura-ace hydraulic disc brakes.
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Manufacturer Price

$14,299
Weight25.9 lbs  
FrameCarbon
ForkCarbon
Wheels700c Carbon
Drivetrain2 × 12 Electronic
GroupsetDura-Ace Di2
MotorTQ 250W 50Nm mid-drive
BatteryTQ 360Wh
BrakesShimano Dura-Ace Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Domane+ SLR 9
Other Endurance bikes
Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Domane+ model range

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Sizing
50cm

5'2" – 5'5"

52cm

5'3" – 5'7"

54cm

5'5" – 5'9"

56cm

5'8" – 6'0"

58cm

5'10" – 6'2"

60cm

6'0" – 6'4"

62cm

6'2" – 6'5"

Rider Fit Notes
  • 5'11", size 56cm, Just right
Price History
Reviews

Summary

The Trek Domane endurance bike is praised for its smooth ride quality, largely due to the IsoSpeed suspension system that effectively dampens vibrations and provides compliance. It features a quiet and efficient TQ motor that delivers subtle, natural pedal assistance, making it feel like a traditional road bike with enhanced support. The bike offers versatile handling, generous tire clearance up to 40mm, and a comfortable, upright riding position suitable for long distances.

Pros
  • Smooth and compliant ride from IsoSpeed suspension

  • Quiet and efficient TQ motor with natural pedal assist

  • Generous tire clearance for versatility

  • Comfortable endurance geometry

  • Lightweight for an e-bike

Cons
  • High price tag

  • Front end stiffness can be jarring

  • Limited battery range in some conditions

  • Proprietary components limit customization

  • Ride quality imbalance between front and rear

Key Quotes
Riding the Domane+ SLR is an experience much closer to that of riding a traditional road bike, except that you have a sweet tailwind where ever you go.
Bicycling
The Trek Domane+ SLR 6’s powerful, quiet and smooth TQ motor system helps make this the Wisconsin brand’s yet.
BikeRadar logoBikeRadar
It’s on the hills where the Domane+ really makes a difference.
Canadian Cycling Magazine logoCanadian Cycling Magazine
Trek’s IsoSpeed feature continues to work brilliantly, offering an incredibly smooth and compliant feel that (at least for me) never feels overly bouncing or intrusive.
Cycling Tips logoCycling Tips
IsoSpeed works just as it’s claimed to, and the extent of its effectiveness is something that can only be fully appreciated in person.
Velo logoVelo

Feedback?

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Bikerumor
All New Trek Domane+ ALR eRoad Bike Combines New Motor with Low-Impact Aluminum Frame

Aug 2025 · Ron Frazelle

News from Trek Bicycles as it launches the all-new Domane+ ALR. A new lightweight aluminum offering that rounds out its eRoad bike platform

Read Review

Canadian Cycling Magazine
Trek introduces new Domane+ ALR: More power and increased tire clearance

Jul 2025 · Matt Hansen

A new addition to Trek’s ebike range, the Domane+ ALR offers a durable aluminum frame paired with a quiet mid-drive motor, balancing comfort, versatility and longer-range pedal assist

Read Review

BikeRadar
Trek Domane+ SLR 6 review

Sep 2023 · Warren Rossiter

Endurance road bike classic fortified with powerful TQ mid-motor

Highs
  • Powerful motor

  • Smooth ride

  • Stable handling

  • Fast charging

Lows
  • Remote control brackets slip

Read Review

Bicycling
There's Always a Tailwind on Trek’s Latest Domane+

Apr 2023

The lightweight and quiet Domane+ SLR proves that less can be more for e-road bikes.

Read Review

Electric Bike Review
Trek Domane+ SLR 9 eTap Review

Nov 2022

Price: $12999.00 | Model Year: 2023 | An ultra light weight 28.5lb electric road bike with endurance comfort geometry and iso speed vibration dampening seat post interface. The first ebike to feature Trek's OCLV carbon fiber. Available in five colors and seven frame sizes.

Observations
  • An ultra light weight 28.5lb electric road bike with endurance comfort geometry and iso speed vibration dampening seat post interface. The first ebike to feature Trek's OCLV carbon fiber. Available in five colors and seven frame sizes.

  • This particular build uses top of the line SRAM components with a 1x12 drivetrain, flared drop bar, and 40c wide gravel tires. Alternative builds offer narrower road tires and a 2x12 Shimano drivetrain. SRAM Red electronic shifting and 160mm hydraulic disc brakes.

  • Hidden fender mounts add utility, integrated top top tube display panel works well and is easy to read, optional smartphone app provides motor tuning settings, optional range extending 160wh bottle shaped battery pack provides 40% more range and off-bike charging.

  • Excellent control pad button placement on left and right hood. Includes 4 amp fast charger despite having a lower capacity 360wh battery. Main battery not removable for charging and storage. Seat post is a proprietary shape so upgrade options are limited.

Read Review

Cycling Tips
2023 Trek Domane+ e-road bike review: Ultra-quiet, ultra-stealthy - CyclingTips

Oct 2022 · James Huang

Flagship model weighs just 12.21 kg, and US-spec bikes get a genuinely useful 45 km/h cutoff from the new TQ mid-drive motor.

Read Review

Gran Fondo Magazine
Trek Domane+ SLR 6 2023 first ride review: how discreet can an e-road bike be?

Oct 2022 · Martin Staffa

With a new TQ-HPR50 mid-drive motor hidden inside its frame, the Trek Domane+ SLR 6 2023 goes e-ncognito, promising to deliver an authentic road bike feeling despite its electric motor. But does it actually work?

Highs
  • Balanced weight distribution and good handling

  • Excellent motor integration

  • Hardly perceptible noise level

  • Generous tire clearance

  • Mudguard mounts ensure good everyday suitability

Lows
  • Disproportionately thick down tube looks awkward

Read Review

Velo
First ride review: Trek Domane+ SLR 9 eTap

Oct 2022 · William Tracy

Trek takes a leap forward in its e-road bikes.

Read Review

Geometry
Specs
Build
Frame

800 Series OCLV Carbon, TQ drive system, tapered head tube, rear IsoSpeed, internal routing, flat mount disc, fender mounts, 142x12mm thru axle

Tire Clearance40c

ColorCarbon Red Smoke

Fork

Domane+ carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle

Stem

Bontrager RCS Pro, -7 degree, 80mm length - 50: Trek RCS Pro, -7 degree, 80mm length; 52, 54: Trek RCS Pro, -7 degree, 90mm length; 56, 58: Trek RCS Pro, -7 degree, 100mm length; 60, 62: Trek RCS Pro, -7 degree, 110mm length

Handlebar

Handlebar, Bontrager Pro IsoCore VR-SF, 40cm - 50, 52: Bontrager Pro IsoCore VR-SF, 40cm; 56, 54: Bontrager Pro IsoCore VR-SF, 42cm; 58, 60, 62: Bontrager Pro IsoCore VR-SF, 44cm

Saddle

Verse Pro saddle, 155mm width - 50, 52: Verse Short Pro, carbon rails, 155mm width; 56, 58, 60, 62, 54: Verse Short Pro, carbon rails, 145mm width

Seatpost

Domane carbon seatpost, KVF2 shaping, 20mm offset, 280mm length - 56, 50, 52, 54: KVF aero carbon seatpost, 20mm offset, 280mm length; 58, 60, 62: KVF aero carbon seatpost, 20mm offset, 320mm length

TypeRigid

Groupset
Rear Derailleur

Shimano Dura-Ace R9250 Di2, 34T max cog

Front Derailleur

Shimano Dura-Ace R9250 Di2, braze-on, down swing

Crank

Praxis Carbon for TQ system 170mm length, Praxis PN: EC-FZA-170C - 50, 52: Praxis Carbon, 170mm length; 56, 54: Praxis Carbon, 172.5mm length; 58, 60, 62: Praxis Carbon, 175mm length

Shifters

Shimano Dura-Ace R9270 Di2, 12 speed

Cassette

Shimano Dura-Ace R9200, 11-34, 12 speed

Chain

Shimano Dura-Ace/XTR M9100, 12 speed

Brakes

Shimano Dura-Ace BR-9270 hydraulic disc, flat mount caliper, resin pad w/fin.

TypeShimano Dura-Ace Hydraulic Disc

Wheels
Rims

Front: Bontrager Aeolus RSL 37, OCLV Carbon, Tubeless Ready, 37mm rim depth, 100x12mm thru axle, Rear: Bontrager Aeolus RSL 37, OCLV Carbon, Tubeless Ready, 37mm rim depth, 142x12mm thru axle

Tires

Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 120 tpi, 700x32mm

Disc Rotors

Shimano Dura-Ace Rotor. Item Number: RT-CL900-S, 160mm, Center Lock. (Visit si.shimano.com for compatibility, manuals and exploded views) - 56, 58, 60, 50, 62, 52, 54: Shimano CL900, centerlock, 160mm; 56, 58, 60, 50, 62, 52, 54: Shimano MT900, centerlock, 160mm

Electric Components
Motor

TQ-HPR50, 50 Nm, 250 watt maximum continuous rated power, 300 watt peak power

Battery

TQ, Battery HPR 360Wh V01, TQ P/N: HPR-BAT01 (329591) - 56, 58, 60, 50, 62, 52, 54: TQ 360Wh; 56, 58, 60, 50, 62, 52, 54: Shimano BT-DN300

Display

TQ LED display with Bluetooth & ANT+ connectivity

Charger

TQ, Charger TQ with DC Cable 4A, TQ P/N: HPR-CHR01 (334498) - 56, 58, 60, 50, 62, 52, 54: TQ 4A charger; 56, 58, 60, 50, 62, 52, 54: Charging cable included

Rider Notes
Riders Also Viewed

First added June 15

Last updated May 30