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The short version

  • Best for: strong enduro riders who want self-shuttle range and natural support without the heavier full-power Rail+ character
  • How the electrical assistance is delivered: confirm the exact motor and UK assistance configuration
  • Battery and charging capacity: TQ 580 Wh
  • Main trade-off: Less climbing force than Bosch CX
01

Where the Slash+ 9.7 fits

The clearest match is strong enduro riders who want self-shuttle range and natural support without the heavier full-power Rail+ character. Compare the complete specification and available independent coverage before choosing a size or variant.

Electric hardtail mountain bicycle on a British forest road
RideIn contextual image for the Trek Slash+ 9.7 review; it may not show the exact build.
02

Motor, controls and UK legality

The available specification does not identify the motor precisely. The controls are TQ LED display with Bluetooth & ANT+ connectivity.

The 60Nm HPR60 is more supportive than the earlier HPR50 Slash+ but remains deliberately below Bosch CX force. Its compact, quiet design aims to interfere less with high-pivot enduro handling.

This is best for riders who still want to work on climbs and preserve a conventional feel on descents. Those wanting the fastest assisted ascents should choose Rail+ instead.

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.

Trek Slash+ 9.7 specification checked for this review
Listed price£4,879–£5,399
MotorNot stated for the UK-delivered configuration in the accessible the seller listing; other source material names TQ-HPR60, 60 Nm.
BatteryTQ 580 Wh
Range informationNo numerical range is stated in the accessible listing; route, rider, weather and assistance level materially affect distance
ControllerTQ LED display with Bluetooth & ANT+ connectivity
FrameOCLV Mountain Carbon, removable battery, high main pivot, idler pulley, angle-adjust headset, adjustable leverage rate, integrated frame protection, internal routing, alloy rocker link, upper chain guide mount, 55 mm chainline, ABP, UDH, 148x12 mm thru axle, 170 mm travel
TransmissionSRAM Eagle 70, 12-speed; SRAM Eagle 70, T-Type; SRAM Eagle XS-1270, T-Type,10-52, 12-speed
BrakesSRAM DB 8 4-piston hydraulic disc
TyresBontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi
Fork and suspensionFox Rhythm 38, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt X axle, 170 mm travel; Fox Performance Float X, 2-position damper, 230 mm x 65 mm
Complete-bike weight21.83 kg in size M, measured with tubeless-ready sealant and no tubes.
Listed sizesM, L
Listed coloursTrek Black 26, Chamelon 26
03

Battery, charging and realistic range

The listed battery is TQ 580 Wh. No numerical range is stated in the accessible listing; route, rider, weather and assistance level materially affect distance

A 580Wh battery is generous for a mid-power enduro bike and substantially larger than older 360Wh TQ applications.

High-pivot terrain, soft tyres and repeated vertical gain will still consume energy quickly. The pack improves scope but does not turn HPR60 into a full-power, unlimited-lap system.

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.

04

Frame, fit and ride character

The frame specification is OCLV Mountain Carbon, removable battery, high main pivot, idler pulley, angle-adjust headset, adjustable leverage rate, integrated frame protection, internal routing, alloy rocker link, upper chain guide mount, 55 mm chainline, ABP, UDH, 148x12 mm thru axle, 170 mm travel. Fork and suspension details are Fox Rhythm 38, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt X axle, 170 mm travel; Fox Performance Float X, 2-position damper, 230 mm x 65 mm. The tyres are Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi.

The OCLV carbon high-pivot frame, 170mm Fox Rhythm 38 and Float X shock clearly target steep, rough descents. The design’s idlers manage chain growth but add parts and setup considerations.

Mechanical Eagle 70 T-Type and DB8 four-piston brakes are robust choices. The Brevard RSL SE tyres reinforce the aggressive brief, though exact grip and casing behaviour are condition-dependent.

Helmeted rider climbing a woodland trail on an electric mountain bicycle
RideIn contextual image for the Trek Slash+ 9.7 review; it may not show the exact build.
05

Brakes, transmission and everyday equipment

The bike uses SRAM DB 8 4-piston hydraulic disc. Transmission is SRAM Eagle 70, 12-speed; SRAM Eagle 70, T-Type; SRAM Eagle XS-1270, T-Type,10-52, 12-speed. The equipment information is Bontrager Line Dropper, MaxFlow, internal routing, 34.9 mm.

Mechanical Transmission avoids a derailleur battery and is designed around full-mount durability. The high-pivot drivetrain requires more cleaning and inspection than a simpler trail frame.

Carbon, long travel and specialist TQ hardware make workshop competence important. This bike is inefficient overkill for mellow paths and ordinary commuting.

06

What the published evidence tells us

The recorded price for this build is £4,879–£5,399. Prices can differ by colour or size, and stock can change; a discount against a reference price does not by itself establish value.

The seller and Trek’s current page establish the HPR60/580Wh 9.7 build.

Pinkbike independently reviewed the higher-spec earlier Slash+ 9.9 and praised the platform’s light-assist enduro handling; its HPR50 motor and components differ. Only the broad high-pivot platform context is carried over, not exact performance claims.

Mechanic inspecting an electric mountain bicycle motor and suspension
RideIn contextual image for the Trek Slash+ 9.7 review; it may not show the exact build.
07

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: 170mm high-pivot carbon enduro chassis
  • Advantage: 580Wh capacity is strong for mid-power
  • Advantage: Quiet, progressive HPR60 assistance
  • Advantage: Robust mechanical Transmission build
  • Disadvantage: Less climbing force than Bosch CX
  • Disadvantage: High-pivot drivetrain adds maintenance
  • Disadvantage: DB8 brakes are not premium
  • Disadvantage: Specialist, expensive and excessive for mellow riding
08

Buying checks and RideIn verdict

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

A distinctive enduro e-bike for riders who value descending character and subtle uplift more than raw motor power, now with a meaningfully larger energy reserve.

Evidence basis

Technical and safety references

RideIn compared the captured retailer listing with the cited manufacturer and independent material. RideIn has not ridden this individual bike, and independent coverage of another year or build is used only as context, not as proof of this model's performance. The retailer source remains visible because it is the evidence for the recorded price, size and build snapshot.