Trek Rail 5 Gen 3 Mercury Grey

Rail 5 is a full-suspension electric mountain bike built for ripping the big stuff. It features the same high-end trail tech as our analog trail bikes, plus a powerful Bosch drive system that's basically like having your own shuttle.

You’re looking for an e-MTB that’s just as ready to shred as non-electric trail bikes. You want a powerful Bosch drive system that’ll propel you up climbs so you can hit lap after lap.

A burly alloy frame with 150mm of rear travel and a 500Wh Removable Integrated Battery, an e-MTB optimized 160mm RockShox 35 Gold RL fork, the latest from Bosch with smart system Performance Line CX capable of speeds up to 20MPH, including the new Bluetooth® LED remote for easy connectivity. Plus, a 1x12 drivetrain with a wide gear range so you can always find the ideal cadence for the motor, a dropper post, powerful 4-piston brakes for more downhill confidence, and 29er wheels with nimble yet grippy 2.6" tires.

Rail 5 is our best-value long-travel e-MTB. It's equally as capable as our regular long-travel trail bikes, it just gets you back to the top in a flash. The powerful Bosch drive systems and durable part spec make for long-lasting fun.

Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools and lets you mount a water bottle cage
Bosch's new smart system gives you all the same power and responsiveness with a new Bluetooth-connected LED remote that puts even more control and customization at your fingertips
The controller has Walk Assist and an intelligent e-MTB mode that automatically delivers the right amount of power based on your terrain
Made with the same hard-charging frame tech as Remedy, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness, and Active Braking Pivot (ABP)
The dropper post lets you lower your saddle on the fly so it's out of the way on descents

*Please note - spec applies to all sizes unless listed separately

Frame	Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
Fork	RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm Maxle Stealth, 160mm travel
Shock	RockShox Deluxe Select+ RT, 230mm x 57.5mm
Max compatible fork travel	170mm (580mm axle-to-crown)

Hub front	Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Hub rear	Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle
Skewer rear	Bontrager Switch thru axle, removable lever
Rim	Alex MD35, tubeless compatible, 32-hole, 35mm width, Presta valve
Tire	Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60"
Max tire size	Frame: 29x2.60", Fork: See manufacturer

Shifter	Shimano Deore M6100, 12 speed
Rear derailleur	Shimano Deore M6100, long cage
Crank	Ethirteen Espec Plus, 165mm length
Chain ring	Ethirteen Espec, 34T alloy, 55mm chainline
Cassette	Shimano Deore M6100, 10-51, 12 speed
Chain	Shimano Deore M6100, 12 speed
Pedal	VP-536 nylon platform
Max chainring size	1x: 34T

Saddle	Bontrager Arvada, steel rails, 138 mm width
*Seatpost	Size: S TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
*Seatpost	Size: M, L, XL TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length
Handlebar	Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips	Bontrager XR Trail Comp, nylon lock-on
Stem	Bontrager Rhythm Comp, 31.8 mm, Knock Block, 0-degree, 50 mm length
Brake	Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper
Brake rotor	Shimano RT76, 6-bolt, 203mm
Rotor size	Max brake rotor sizes - Frame: 200mm, Fork: see fork manufacturer

Battery	Bosch PowerTube 500Wh, smart system
Charger	Bosch standard 4A, 110V, smart system
Motor	Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
Computer	Bosch LED remote, smart system

Weight	M - 24.29 kg / 53.56 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

We reserve 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, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.