Rail+ 8 Gen 5 2025 Electric Mountain Bike

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.  

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Key Features

 

• • 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

 

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Specifications

 

Frameset

 

• • Frame: 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

• • Fork: RockShox ZEB Select, DebonAir spring, Charger RC damper, tapered steerer, 44 mm offset, Boost110, Maxle Stealth, 160 mm travel

• • Rear Shock: RockShox Super Deluxe Select RT, 205mm x 65mm

 

Wheels

 

• • Rims: (f) Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29 (r) Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 27.5

• • Tyres: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5/29x2.50

 

Drivetrain

 

• • Crankset: E*thirteen E*spec Plus, 160 mm length

• • Shifters: Shimano SLX M7100, 12-speed

• • Rear Derailleur: Shimano XT M8100, long cage

• • Chain: Shimano SLX M7100, 12-speed

• • Cassette: Shimano Deore M6100, 10-51, 12-speed

 

Components

 

• • Handlebar: Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width

• • Stem: Bontrager Elite, 35 mm, 0-degree, 45 mm length

• • Grips: Bontrager XR Trail Comp, nylon lock-on

• • Brakes: SRAM DB 8 4-piston hydraulic disc

• • Saddle: Bontrager Verse P3, steel rails

• • Seatpost: Bontrager Line Dropper, MaxFlow, internal routing, 34.9 mm

• • Extras: Trek 27.5 custom fender

 

E-System

 

• • Motor: Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)

• • Battery: Bosch PowerTube 800 Wh, smart system

• • Controller: Bosch System Controller BRC3100, smart system

 

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Trek Rail Sizing

 

	S	M	L	XL
Rider Height (cm)	155 - 165	165 - 176	177 - 188	188 - 195
Inseam (cm)	74 - 78	79 - 83	84 - 89	89 - 91

 

Product code: 931385