Trek Domane+ SLR 6 Pro review

Where the Domane+ SLR 6 Pro fits

The clearest match is experienced endurance-road riders wanting subtle electric help in a light, premium carbon package. This review is based on the Evans specification, manufacturer information and clearly identified independent coverage; it is not presented as a RideIn hands-on test.

Motor, controls and UK legality

Evans lists TQ-HPR50, 50 Nm, 250 W maximum continuous rated power.. The controls are described as TQ LED display with Bluetooth & ANT+ connectivity.

The older HPR50 delivers 50Nm, ten less than the current HPR60 in the ALR 5 and Checkpoint+. Its appeal is compact, quiet integration rather than maximum output.

Assistance is intended to blend with the rider and ends at the UK legal limit. Strong riders will spend meaningful time above that threshold, where low overall mass and efficient road kit matter.

For use as an electrically assisted pedal cycle in Great Britain, the maximum continuous rated motor power must not exceed 250W, assistance must cut out by 15.5mph and the pedals must be able to propel the bike. Check the label and delivered configuration rather than relying on a category name.

Battery, charging and realistic range

The listed battery is TQ 360 Wh. No numerical range is stated in the accessible listing; route, rider, weather and assistance level materially affect distance

The 360Wh internal battery is typical of a light e-road concept and supports a slender frame profile.

It is not a guarantee of all-day assisted climbing. Optional range extension, route elevation and mode use must be considered for long events or tours.

Use only the approved compatible charger, charge away from escape routes and stop using a battery that is damaged, swollen, leaking or unusually hot. Ask for the replacement-pack price and warranty conditions before the original battery becomes a problem.

Frame, fit and ride character

The frame specification is 800 Series OCLV Carbon, TQ drive system, tapered head tube, rear IsoSpeed, internal routing, flat mount disc, mudguard mounts, 142x12 mm thru axle. Fork and suspension details are Domane+ carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat mount disc, 12x100 mm thru axle. The tyres are Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 120 tpi, 700x32 mm.

Rear IsoSpeed, a carbon fork, IsoCore bar and 32mm tyres create several layers of road-vibration management without suspension-bike bulk.

Shimano 105 Di2 2x12 preserves close road ratios, while Aeolus Pro 37 carbon wheels distinguish this Pro build from cheaper Domane+ specifications.

Brakes, transmission and everyday equipment

The bike uses Shimano 105 hydraulic disc, BR-R7170 flat mount caliper, resin pad w/fin. Transmission is Shimano 105 R7170 Di2, 12-speed; Shimano 105 R7150 Di2, 36T max cog; Shimano 105 7100, 11-34, 12-speed. The equipment information is KVF aero carbon seat post, 20 mm offset.

Electronic shifting adds precise control but another battery-management task. The integrated electrical system and carbon parts reward specialist service and careful transport.

For a discounted previous-generation build, battery health, warranty start date, firmware and included charger should be confirmed. A discount can be attractive only if those ownership details are sound.

What the published evidence tells us

Evans listed this build at £4,349 when RideIn checked it on 29 August 2026. Prices can differ by colour or size, and stock can change; a discount against a reference price does not by itself establish value.

The Evans page and Trek’s official product information for this build support the HPR50, carbon frame and 105 Di2 Pro build.

We found retailer descriptions and owner commentary but no rigorous like-for-like independent UK test of this exact Pro configuration. Ride analysis is therefore based on verified design features, not claimed personal experience.

Advantages and disadvantages

The useful comparison is whether the complete build suits the regular route, storage and service plan. A premium motor cannot compensate for poor fit, while a modest component can be entirely sensible on the right type of bike.

• Advantage: Premium 800 Series OCLV frame
• Advantage: Subtle TQ integration
• Advantage: 105 Di2 2x12 road drivetrain
• Advantage: Carbon wheels and multiple comfort features
• Disadvantage: Older 50Nm HPR50 system
• Disadvantage: Only 360Wh internal capacity
• Disadvantage: Premium carbon and electronics raise service cost
• Disadvantage: Battery condition and warranty details need checking

Buying checks and RideIn verdict

Confirm the exact product code, frame size, colour, battery capacity, assistance configuration and included equipment before paying. Ask which Evans branch or authorised dealer will handle electrical diagnosis, warranty labour and replacement components, then test the brakes, controls and fit before committing to regular use.

A sophisticated light e-road bike when road feel outranks power, but compare its older HPR50 system and stock history carefully against newer HPR60 alternatives.