Trek 2025 Rail+ 8 Gen 5
Add 30 days free insurance
DARK STAR
POWERSURGE
The 2025 Rail+ 8 Gen 5 S DARK STAR is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
The Rail+ 8 is an aluminium enduro e-bike with big power and tons of travel for wild, ride-anything adventures. It starts with an Alpha Platinum Aluminium frame paired with a RockShox Super Deluxe Select+ RT shock and ZEB Select fork (160 mm front/rear) for making quick work of chunky backcountry rock gardens. You get the smooth-shifting performance of a Shimano XT/SLX drivetrain, stop-on-a-dime control from SRAM DB 8 4-piston disc brakes, a Bontrager Line dropper post and tubeless-ready Bontrager Line TLR 30 wheels.
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
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 ZEB Select 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 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.
- The Rail+ delivers adventure with plenty of travel and power for getting after epic rides that take you peak to peak or chasing endless enduro laps
- The powerful Bosch Performance CX system goes full gas up steep climbs and keeps you cool for the descents
- You can tweak your geometry and suspension leverage rate for how you ride, and add in adjustable angle headset cups (sold separately) for even more adjustability
- Want even more boost? With the Bosch e-Bike Flow app, you can increase torque to 100 Nm and peak power up to 750W.
- The massive 800 Wh RIB 2.0 battery supports you for big miles and can be easily removed for travel or storage, and is compatible with PowerMore for even bigger rides
Bosch Performance Line CX motor: 100 Nm upgrade ready
Bosch Performance Line CX sets the standard for eMTB performance with 85 Nm of torque out of the box, but can be tuned all the way up to 100 Nm and 750 W of power using the Bosch eBike Flow app. The Bosch smart system also has intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
New RIB 2.0
Removable Integrated Battery (RIB 2.0) makes it easy to remove your battery for more convenient charging or travelling, and you don't have to worry about dropping it thanks to a secondary safety catch.
Extend your ride
Wanna take your ride even further? Pair a 250 Wh PowerMore range extender with your bike to chase your most epic adventures.
Bosch Mini Remote
The compact, ergonomic Mini Remote lets you easily change assist level, activate Walk mode, or turn on optional lights, all without moving your hand off the handlebar. Plus, it's wireless and connects with your System Controller via Bluetooth
Mixed wheel size
You get a 29" front wheel for monster truckin' over stuff, with a smaller 27.5" wheel out back for getting rowdy.
Adjust the suss for full send
Adjust the leverage rate with just a flip of a chip. Ride it in the Less progressive setting for a plusher feel perfect for rugged trails with square-edge bumps. Flip it to More progressive when you're hitting big features and don't want to bottom-out, or when you want to run a coil shock.
Cookson Cycles have teamed up with ShackWrap offering paint protection for your new pride and joy!
We offer 3 different options which can be added to your shopping cart - eMTB, MTB and Road/Gravel. If the option isn't there for your bike send a message to the shop and we can take a look.
Click here to purchase and for more info
Free UK Delivery On Bike Orders Over £1500 *
All our UK customers can select our FREE standard delivery option on any order over £35 (except exclusions). Learn more about Cookson Cycles Delivery options here.
Once processed, in store stock items will typically be dispatched within 48 hours.
If you have chosen our white glove delivery option dispatch times vary due to courier availability.
* excludes cycle to work purchases - Standard Delivery charge for all cycle to work purchases £35
Bike Build & Delivery
All our bikes are built in store and thoroughly inspected, before carefully packing back up for shipping. If you have selected our white glove delivery service, the bike will come to you ready to ride and the driver can help with some basic bike setup (Saddle height and suspension) at your doorstep. Please be aware if you haven’t selected our white glove delivery service the bike will require some assembly, which we recommend be carried out by an experienced mechanic. See assembly instructions here
Click & Collect
Click and collect is available on all purchases at checkout. Once your order is ready to collect, we will notify you via email or text.
0% Finance Options Available
Spread the cost of your purchase with 0% finance on all bikes, accessories, and parts. Simply choose Klarna at checkout to view your interest-free options, available for up to 36 months.
Prefer an alternative? We also offer Novuna Finance, with 0% APR available for up to 18 months, or interest-bearing loans over terms up to 48 months. Select Novuna at checkout to start your application.
Save up to 39% via Cycle to Work!
Purchasing through a Cycle to Work scheme enables you to pay for the bike via salary sacrifice and make a great saving.
Most bikes* and accessories we offer can be purchased through the scheme - You can also purchase accessories, clothing and upgrades for your bike too.
We accept vouchers from most providers, with a preference for Green Commute Initiative https://www.greencommuteinitiative.uk/ or GoGeta https://www.gogeta.com/
If your company haven’t signed up to a scheme, its super easy and with the provider Green Commute Initiative it doesn’t require the company to sign up - So less admin and paperwork for a busy admin/accounts team!
For a full list of providers we accept vouchers for see details here https://cooksoncycles.co.uk/cycle-to-work/ If you can’t see your provider on our list, just drop the store an email and we can double check.
*Depending on the cycle to work provider we may not be able to offer full discount on sale bikes or accessories due to commissions charged by the scheme.
| Frame | Size S, UNI, , Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9 mm seat tube, ABP, UDH, Boost148, 12 mm thru axle, 160 mm travel |
| Wheel Size | Front 27.5 |
| Wheel Size | Rear 27.5 |
| Weight | 25080 g |
| Fork | RockShox ZEB Select, DebonAir spring, Charger RC damper, tapered steerer, 44 mm offset, Boost110, Maxle Stealth, 160 mm travel |
| Fork | |
| Gears | DERAILLEUR, , 1 Gears |
| Tyres | BONTRAGER, |
| Pedals | UNKNOWN, |
| Wheels | BONTRAGER, Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5" Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12Â mm thru axle, 27.5" |
| Shifters | SHIMANO, Shimano SLX M7100, 12-speed, |
| Kickstand | UNKNOWN, |
| Front Brake | SH, SRAM DB 8 4-piston hydraulic disc SRAM CentreLine, 6-bolt, round-edge, 200 mm Max brake rotor size, |
| Rear Brake | SH, SRAM DB 8 4-piston hydraulic disc SRAM CentreLine, 6-bolt, round-edge, 200 mm Max brake rotor size, |
| Rear Derailleur | , |
| Crankset | E_THIRTEEN, E*thirteen E*spec Plus, 160 mm length |
| Chain | SHIMANO, Shimano SLX M7100, 12-speed |
| Handlebar | BONTRAGER, Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width |
| Stem | BONTRAGER, Bontrager Elite, 35 mm, 0-degree, 45 mm length |
| Bartape / Grips | BONTRAGER |
| Seatpost | BONTRAGER |
| Saddle | BONTRAGER, Bontrager Verse P3, steel rails |
| Mudguards | TREK |
| Front Light | UNKNOWN |
| Rear Light | UNKNOWN |
| Battery Capacity | 800 |
| Battery Brand | BOSCH |
| Battery Model | BOSCH |
| Drivetrain Brand | |
| Sensor Type | PEDALFORCE |
| Colours | DARK STAR, POWERSURGE |
| Sizes | L, M, S, XL |
| Brand | Trek |
| Model Year | 2025 |
| Barcodes | 197216100416, 197216100423, 197216100430, 197216100447, 197216100454, 197216100461, 197216100478, 197216100485 |
| SKUs / Part Numbers | 5329134, 5329135, 5329136, 5329137, 5329138, 5329139, 5329140, 5329141 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.
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We offer 10 days free cover with all new bikes purchased, provided by our insurance partner VeloLife. You will be covered for the first 10 days of ownership against theft and accidental damage, so you can purchase with confidence.
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with a £ 0.00 deposit.
The total charge for credit is £ 0.00.
Choose an available finance option:
To apply, add the item to your basket and apply for finance on your entire basket.
Please note the above quotation is an indicative cost and actual monthly payments may vary by +/- 2p per month.
Credit subject to status and affordability. Terms & Conditions Apply. Cookson Cycles is a credit broker and is Authorised and Regulated by the Financial Conduct Authority. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC, authorised and regulated by the Financial Conduct Authority. Financial Services Register no. 704348. The register can be accessed through http://www.fca.org.uk.
24 Month Representative Example:
Purchase Price (incl. VAT) £750
Deposit £75
Loan Amount £675
Interest/Total Charge for Credit £109.32
Total Amount Repayable £859.32
Balance Payable £784.32
By 24 Monthly Repayments of £32.68
15.9% APR Representative
Bank rate of interest 8.1% PA fixed
Please note the above quotation is an indicative cost and actual monthly payments may vary.
For Buy Now Pay Later and Deferred Interest Bearing Credit: Interest is charged from day 1 of your agreement, but not charged on any repayments made during the deferral period. On expiry of the deferral period, interest accrued during the deferral period will be applied to your repayments.
Consumer credit services are only available to over 18s and subject to status.
This is for estimation purposes only. Actual Finance Application is Completed During Checkout.