Trek Rail+ 8 Gen 5 2026

£5,000.00

Trek Rail+ 8 Gen 5 Electric Mountain BikeWheel size: MXRear shock: RockShox Super Deluxe Select RT, 160 mmFork: RockShox ZEB Select, 160 mmFrame: Alpha Platinum AluminiumMotor: BoschTorque: 85–100 NmBattery size: 800 WhBuilt for Big TerrainThe Trek Rail+ 8 Gen 5 is a powerful and highly capable electric mountain bike designed — Read More

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GTIN (UPC): 24TREKRAIL8GEN525 Categories: , , ,

Spread the cost from £125.00 monthly*

Buying Guides

Description

Trek Rail+ 8 Gen 5 Electric Mountain Bike

  • Wheel size: MX

  • Rear shock: RockShox Super Deluxe Select RT, 160 mm

  • Fork: RockShox ZEB Select, 160 mm

  • Frame: Alpha Platinum Aluminium
  • Motor: Bosch

  • Torque: 85–100 Nm

  • Battery size: 800 Wh

Built for Big Terrain

The Trek Rail+ 8 Gen 5 is a powerful and highly capable electric mountain bike designed for riders who want to tackle demanding trails, steep climbs and technical descents with confidence. As part of the Trek Rail and Trek Rail+ range, this long-travel e-MTB blends proven enduro geometry with Bosch’s latest smart system technology, making it an ideal choice for riders searching for a high-performance Trek electric mountain bike.

At the heart of the Rail+ 8 is a Bosch Performance Line CX motor, delivering 85 Nm of torque as standard and upgrade ready to 100 Nm through the Bosch eBike Flow app. Paired with a large 800 Wh Bosch PowerTube battery, this Trek electric mountain bike offers sustained power for long days in the hills, with smooth assistance that adapts automatically to the terrain in eMTB mode. The RIB 2.0 system allows easy battery removal for charging or travel while keeping it secure on the trail.

The Alpha Platinum Aluminium frame is engineered for aggressive riding, combining 160 mm of rear travel with Trek’s Active Braking Pivot to maintain traction and control when braking on rough ground. Up front, the RockShox ZEB Select fork delivers confident handling through rock gardens and steep descents, while the adjustable leverage rate lets riders fine-tune suspension feel for plush trail riding or more progressive support on big hits.

A mixed wheel size setup enhances the Rail+ 8’s all-mountain capability, with a 29″ front wheel for rollover and stability, and a 27.5″ rear wheel for agility and playful handling. Shimano XT and SLX drivetrain components ensure dependable shifting under load, while SRAM DB 8 4-piston brakes provide consistent stopping power on long, technical descents.

The integrated Bosch Kiox 400C display keeps key ride data clearly visible and adds practical USB-C charging, turning the Trek Rail+ 8 into a true adventure-ready electric mountain bike. With tubeless-ready Bontrager wheels, a long-travel dropper post and durable trail components throughout, the Trek Rail+ 8 Gen 5 is a compelling option for riders looking to buy a premium Trek electric mountain bike built for hard riding and big terrain.

Sizing Guide

  • Small: 155–165 cm

  • Medium: 165–177 cm

  • Large: 177–188 cm

  • Extra Large: 188–195 cm

The Trek Rail+ 8 Gen 5 is designed for riders seeking a powerful, confidence-inspiring electric mountain bike with the range, suspension and control to handle demanding trails and all-day adventures.

Bike specifications are advised by the manufacturer and can be subject to change without prior warning.

Please call our helpful sales team on 01539 821 443 or email us for the latest up-to-date product information.

Specification

Frame

Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle, 160 mm travel

Rear Shock

RockShox Super Deluxe Select+ RT, 205mm x 65mm

Fork

RockShox ZEB Select, DebonAir spring, Charger RC damper, tapered steerer, 44 mm offset, Boost110, Maxle Stealth, 170 mm travel

Stem

Bontrager Elite, 35 mm, 0-degree, 45 mm length

Handle Bars

Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width

Tape Grips

Bontrager XR Trail Comp, nylon lock-on

Brakes

SRAM DB 8 4-piston hydraulic disc

Rear Derailleur

Shimano XT M8100, long cage

Rear Hub

6-bolt, Boost110, 15 mm thru axle

Front Hub

6-bolt, Boost110, 15 mm thru axle

Shift Levers

Shimano SLX M7100, 12-speed

Cassette

Shimano Deore M6100, 10-51, 12-speed

Chainset

Shimano SLX M7100, 12-speed

Wheels

Bontrager Line Comp 30

Front Tyre

Bontrager Brevard Pro XR

Rear Tyre

Bontrager Brevard Pro XR

Saddle

Bontrager Verse P3, steel rails

Seat Post

Bontrager Line Dropper

Battery

Bosch PowerTube 800 Wh, smart system

Motor

Bosch Performance Line CX, 20 mph (25 km/h in Europe)

Discipline

MTB

Material

Aluminium

Wheel size

29"

Electric

Yes

Season

2026

Add bike + kit to your basket

Add bike + kit to your basket

Checkout with V12 Finance with online acceptance

Checkout with V12 Finance with online acceptance

We contact you to confirm order and arrange shipping

We contact you to confirm order and arrange shipping

Please use our calculator below to help you see what finance options are available. To apply for finance, please select this option at the checkout.

Step 1:Choose your finance option

Please specify the finance option that you wish to choose.

From £125.00 per month.

Step 2:Choose your deposit amount

Please specify the deposit amount that you wish to pay.

The accepted value is between £500.00 and £1,500.00

Representative finance example

Amount of credit £4500.00. 36 monthly repayments of £125.00. Representative APR 0.00%. Total amount repayable £4500.00.
APR Fixed 0.00%
Installment Amount £125.00/month
Repayment Term 36 months
Total Interest Charged £0.00
Deposit Amount £500.00

Cycle to work scheme

Wheelbase has teamed up with CycleScheme, Bike2Work Scheme, Green Commute Initiative, as well as, Vivup, Gogeta, Cycle Solutions & Halfords to offer PAYE employees a healthier way to commute. The scheme stems from the U.K Government's Green Transport Plan which is designed to get more people out and about riding bikes and reaping the multitude of personal and environmental benefits!

To make a purchase using a Cycle To Work Voucher, please submit an enquiry using this form. We are happy to reserve the bike for up to two weeks with a holding deposit whilst you await your voucher. If you would like us to go ahead and set up your order, please submit a shipping address and phone number. These details are required to process the order. We will make contact to confirm your order and advise the next steps.

If you would like more information, feel free to submit the enquiry without a shipping address.

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