Trek Rail+ 8 Gen 5 (2025)

Ideal for you!

You want a bike that maximizes fun and is always ready to tackle the toughest adventures off the beaten path or just for a couple more laps. You're interested in the features of an enduro bike to challenge rough and turbulent terrain and love the feeling of full assistance that leaves enough energy to get back to the top for another round.

The technology you get

Alpha Platinum aluminum frame with Bosch Performance CX system (85Nm, 250W) and removable 2.0 integrated 800Wh battery. RockShox ZEB Select 160mm fork with DebonAir spring, Motion Control damper with lockout, and RockShox Deluxe Select+ RT damper. All complemented by a Shimano XT and SLX 12-speed drivetrain, a dropper post, Bontrager Line Comp 30 Tubeless Ready wheels, and Shimano 4-piston hydraulic disc brakes.

The final word

Rail+ 8 is an e-MTB enduro bike designed for big adventures. Featuring a high-function adjustable geometry, it's powered by a powerful battery and a robust motor that gets you anywhere. The next-generation drivetrain balances price and performance, offering all-around riding.

Here's why you'll love it

Rail+ offers suspension and power levels that allow for epic adventures, spanning from one peak to another, or endless enduro trails.
The powerful Bosch Performance CX system delivers peak performance on steep climbs and conserves energy on descents.
You can adjust the geometry and suspension leverage ratio based on your riding style, and add new variable-angle headset cups (sold separately) for even greater customization.
The incredibly powerful 800Wh RIB 2.0 battery ensures maximum assistance, mile after mile, and can be easily removed during transfers or when it needs to be stored.
It is compatible with the Bosch PowerMore auxiliary battery to go even further and experience epic adventures.

FRAME KIT

• Frame: Alpha Platinum Aluminum, removable integrated battery (RIB 2.0), tapered head tube, internal cable routing, Motor Armor, headset with adjustable angle, adjustable Mino Link geometry, adjustable lever ratio, 34.9mm seat tube, ABP, UDH, Boost148, 12mm thru-axle, 160mm travel
• Fork: RockShox ZEB Select, DebonAir spring, Charger RC damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 160mm travel
• Suspension: RockShox Super Deluxe Select+ RT, 205mm x 65mm
• Max compatible fork travel: 180mm

WHEELS

• Front Wheel:
  - Size: S - Bontrager Line Comp 30, Tubeless Ready, 6 bolts, Boost110, 15mm thru-axle, 27.5"
  - Size: M, L, XL - Bontrager Line Comp 30, Tubeless Ready, 6 bolts, Boost110, 15mm thru-axle, 29"
• Rear Wheel: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6 bolts, Boost148, 12mm thru-axle, 27.5"
• Rear Axle: Bontrager Switch Thru Axle, removable lever
• Tire:
  - Size: S, M, L, XL - Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60tpi, 27.5x2.50"
  - Size: M, L, XL - Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60tpi, 29x2.50"
• Tire Sealant: Bontrager TLR Sealant, 6oz
• Nipple Protector: Bontrager TLR
• Max Tire Size: Frame: 27.5x2.60", Fork: Consult fork manufacturer data

ELECTRONIC SYSTEM

• Battery: Bosch PowerTube 800Wh, smart system
• Charger: Bosch standard 4A, 230V, smart system
• Controller: Bosch system controller BRC3100, smart system
• Motor: Bosch Performance Line CX, max assist 20mph/32km/h (max assist 25km/h in EU and APAC)

TRANSMISSION

• Shifter: Shimano SLX M7100, 12-speed
• Rear Derailleur: Shimano XT M8100, long cage
• Cassette: Shimano Deore M6100, 10-51, 12-speed
• Chain: Shimano SLX M7100, 12-speed
• Max Chainring Size: 1x: 36T

COMPONENTS

• Saddle: Bontrager Verse P3, steel rails
• Seatpost:
  - Size: S - Bontrager Line dropper post, 150mm travel, MaxFlow, internal cable routing, 34.9mm, length 410mm
  - Size: M - Bontrager Line dropper post, 170mm travel, MaxFlow, internal cable routing, 34.9mm, length 450mm
  - Size: L, XL - Bontrager Line dropper post, 200mm travel, MaxFlow, internal cable routing, 34.9mm, length 515mm
• Handlebar: Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
• Grips: Bontrager XR Trail Comp, nylon lock-on
• Stem: Bontrager Elite, 35mm, 0 degrees, 45mm length
• Brake: SRAM DB 8 hydraulic disc brake with 4-piston
• Brake Rotor: SRAM CenterLine, 6 bolts, rounded edge, 200mm
• Disc Size: Max brake rotor size - Frame: 220mm, Fork: see fork manufacturer

ACCESSORIES

• Fenders: Custom Trek 27.5" fender

WEIGHT

• Weight: M - 25.08 kg / 55.3 lbs (with TLR sealant, without inner tube)
• Weight Limit: This model has an overall maximum limit (combined weight of bike, rider, and load) of 136kg.

The manufacturer reserves the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.