2025 Trek Rail+ 8 Gen 5 – Electric Mountain Bike
Specifications
Specification |
Details |
Model |
Rail+ 8 Gen 5 |
Vehicle Category |
Electric Mountain Bike |
Application |
Enduro, trail riding, all-mountain |
Starting Price (2025) |
$7,699.99 USD |
Color Options |
Dark Star, Greenvisibility |
Sizes |
S, M, L, XL |
Frame & Drivetrain
Specification |
Details |
Frame |
Alpha Platinum Aluminum, 160mm travel, internal routing, adjustable geometry, downtube guard, BSA 73, ISCG 05, Boost148 |
Fork |
RockShox ZEB Select, DebonAir spring, Charger 2.1 RC damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel |
Rear Shock |
RockShox Super Deluxe Select RT, 230x57.5mm |
Drivetrain Compatibility |
Shimano XT/SLX, 12-speed |
Dropouts |
15x110mm thru axle (F), 148x12mm thru axle (R) |
Crank |
FSA Bosch CK-220, 34T, 160mm (S), 165mm (M, L, XL) |
Chain |
Shimano SLX M7100, 12-speed |
Rear Derailleur |
Shimano XT M8100 |
Shifters |
Shimano SLX M7100, 12-speed |
Cassette |
Shimano SLX M7100, 10-51, 12-speed |
Components & Features
Specification |
Details |
Seating |
Bontrager Arvada, hollow chromoly rails, 138mm width |
Fuel Type |
Electric (Bosch Performance Line CX motor) |
Wheels/Tyres |
Bontrager Line TLR 30, alloy, Tubeless Ready, 29x2.6" (front), 27.5x2.6" (rear) |
Wheel Size |
29" (front), 27.5" (rear) |
Brakes |
SRAM DB 8, 4-piston hydraulic disc, 200mm rotors |
Brake Levers |
SRAM DB 8 |
Handlebar |
Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width |
Stem |
Bontrager Line, 35mm, 0 degree, 35mm (S), 45mm (M, L, XL) |
Headset |
Knock Block Integrated, sealed cartridge bearing |
Saddle |
Bontrager Arvada, hollow chromoly rails, 138mm width |
Seatpost |
Bontrager Line Dropper, 100mm (S), 150mm (M), 170mm (L), 200mm (XL), internal routing, 34.9mm |
Grips |
Bontrager XR Trail Pro, nylon lock-on |
Front Hub |
Bontrager alloy, sealed bearing, 6-bolt, 15x110mm thru axle |
Rear Hub |
Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, 148x12mm thru axle |
Rims |
Bontrager Line TLR 30, alloy, Tubeless Ready, 30mm width |
Spokes |
14g stainless steel, black |
Exterior Features |
Internal routing, adjustable geometry, downtube guard, ISCG 05 |
Weight |
23.5 kg / 51.81 lbs (size M) |
Drive Unit |
Bosch Performance Line CX, 85-100Nm torque |
Battery |
Bosch PowerTube, 800Wh |
Charger |
Bosch Standard Charger, 4A |
Display |
Bosch Kiox 500 |
Certifications |
UL 2849 (system certification for e-bike safety) |