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The Rail+ 8 is an alloy enduro e-bike that packs in what you want most for big adventures.
The Rail+ 8 is an alloy enduro e-bike that packs in what you want most for big adventures.
Trek

Trek Rail+ 8 Gen 5 Electric Full Suspension Mountain Bike 2025 in Powersurge

£6,000.00
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

Any item, except food, face masks or e-gift vouchers (full e-gift vouchers T&Cs are listed on the respective product pages) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase. It is recommended that you use a recorded delivery service to ensure your items are received by us. We cannot assume responsibility for items that are lost in the post.

Online or in-store purchases can both be returned to any store free of charge or can be returned by post after completing the online returns form. If you are returning an item due to a fault, we will refund your postage.

If you wish to return your bike to us, please keep the box it arrived in and let us know using the returns form and we will arrange collection.


Customer Returns Form

If you wish to cancel, return or exchange an order please fill in the form below. Returns can be processed quicker if all required information is added.



Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the products have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:

1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £24.99 for collection. If you do not have the original box, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid receipt.

Trek Rail+ 8 Gen 5 Electric Full Suspension Mountain Bike 2025 in Powersurge

Season:2025

Brand:Trek

Code:48470GRN

The Rail+ 8 is an alloy enduro e-bike that packs in what you want most for big adventures. It comes equipped with a Bosch Performance CX drive system with full power for crushing laps and big climbs while its massive battery takes you the distance. 160 mm of front and rear travel make Rail+ super capable in the rough and rowdy, and adjustable geometry lets you customise it for how and where you ride.

It's right for you if...

You want a bike that maximises the fun and is up for gnarly rides that get you off the grid or just hammering in an extra lap or two. You need the capability of an enduro bike for pointing it down the rough and rowdy, and love the feeling of full assist taking the sweat out of the climb back to the top for more

The tech you get

An Alpha Platinum Aluminium frame with a Bosch Performance CX system (85 Nm, 250 W) and 800 Wh Removable Integrated Battery 2.0. A 160 mm RockShox Domain RC fork with DebonAir spring, Motion Control damper and lockout, and a RockShox Deluxe Select+ RT shock. All topped off with a Shimano XT and SLX blended 12-speed drivetrain, dropper post, Bontrager Line Comp 30 Tubeless Ready wheels and 4-piston Shimano hydraulic disc brakes.

The final word

The Rail + 8 is an enduro e-MTB dialled for big adventures. It packs in capable, adjustable geometry, a massive battery and a powerful motor to get you wherever you want to go. An upgraded drivetrain balances price and performance for a ride that's ready for anything.

Key Features & Benefits:

  • Aluminium Frame:Lightweight & efficient for trail riding.
  • 12-Speed SRAM AXS Transmission:Perfect for all terrain and fully wireless.
  • 800 Wh Battery:Massive capacity from the 800 Wh RIB 2.0 removable integrated battery

Full 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
  • Motor:Bosch Performance Line CX, 20 mph (25 km/h in Europe)
  • Controller:Bosch System Controller BRC3100, smart system
  • Battery:800 Wh RIB 2.0 removable integrated battery.
  • Charger:Bosch standard 4A, 230V, smart system
  • Number of Gears:12
  • Gear Shifters:Shimano SLX M7100, 12-speed
  • Chainset:E*thirteen E*spec Plus, 160 mm length
  • Chainrings:36T
  • Rear Cassette:Shimano Deore M6100, 10-51, 12-speed
  • Chain:Shimano SLX M7100, 12-speed
  • Front Derailleur:N/A
  • Rear Derailleur:Shimano XT M8100, long cage
  • Bottom Bracket:.
  • Pedals:Not supplied:Shop pedals here
  • Rims:Bontrager Line Comp 30, Tubeless Ready, 6-bolt
  • Front Hub:Size: S - Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5", Size: M, L, XL - Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29"
  • Rear Hub:Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 27.5"
  • Front Tyre:Size: M, L, XL - Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50"
  • Rear Tyre:Size: S, M, L, XL - Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50"
  • Brakes:SRAM DB 8 4-piston hydraulic disc
  • Handlebars:Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
  • Handlebar Grips:Bontrager XR Trail Elite, nylon lock-on
  • Headset:Integrated cartridge bearing, 1-1/8" top, 1.5" bottom, angle adjust cup compatible
  • Stem:Bontrager Elite, 35 mm, 0-degree, 45 mm length
  • Saddle:Bontrager Verse P3, steel rails
  • Seatpost:Size: S - Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9 mm, 410 mm length, Size: M - Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 34.9 mm, 450 mm length, Size: L, XL - Bontrager Line Dropper, 200 mm travel, internal routing, 34.9 mm, 515 mm length
  • Accessories:.
  • Weight:This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Chart for Trek Rail Gen 5

Frame SizeRider Height (cm)Rider Height (')Inseam (cm)Inseam (")
S155 - 165 cm5'1" - 5'5"74 - 78 cm29" - 31"
M165 - 176 cm5'5" - 5'9"79 - 83 cm31" - 33"
L177 - 188 cm5'10" - 6'2"84 - 89 cm33" - 35"
XL188 - 195 cm6'2" - 6'5"89 - 91 cm35" - 36"

Geometry Information for Trek Rail Gen 5

Frame size number15.5"15.5"17.5"17.5"19.5"19.5"21.5"21.5"
Frame size letterSSMMLLXLXL
Geometry positionHighLowHighLowHighLowHighLow
Wheel size27.5"27.5"29"/27.5"29"/27.5"29"/27.5"29"/27.5"29"/27.5"29"/27.5"
A —Seat tube3838414143.543.54747
B —Seat tube angle75.3°74.8°75.3°74.8°75.2°74.8°75.2°74.8°
Effective seat tube angle77.9°77.4°77.7°77.2°77.5°77.0°77.4°76.9°
C —Head tube length10101010121214.514.5
D —Head angle65.0°64.5°65.0°64.5°65.0°64.5°64.9°64.5°
E —Effective top tube56.256.359.159.263.963.96767
F —Bottom bracket height34.433.834.533.834.533.834.533.8
G —Bottom bracket drop1.21.81.82.41.82.41.72.4
H —Chainstay length44.644.844.644.844.644.844.644.8
I —Offset4.34.34.34.34.34.34.34.3
J —Trail11.912.212.713.112.713.112.713.1
K —Wheelbase120.1127.8122.9123127.7127.8131.3131.4
L —Standover76.375.877.576.977.576.979.877.9
M —Frame reach43.54345.54549.5495251.5
N —Frame stack59.859.463.162.764.964.567.266.7




Warranty Information for Trek:

Lifetime warranty on Frame sets (frame and rigid fork), main frame and full suspension swing arms for the lifetime of the original owner, and Bontrager wheels with carbon rims.

2-year warranty on Rear suspension linkage components, including bearings, rocker link and accompanying hardware and components, Bontrager wheels with alloy rims, Paint and transfers.

For full warranty policy please visit trekbikes.com

Sizing Information
Trek Sizing Guide
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