It's right for you if...
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.
The tech you get
A burly alloy frame with 150mm of rear travel that fully encases a 500Wh battery, an e-MTB optimized 160mm RockShox 35 Gold RL fork, a powerful new Bosch Performance Line CX 250W motor that assists up to 20 mph, and a Purion controller. 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 Bontrager wheels with nimble yet grippy 2.6" tires.
The final word
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.
favorite_borderWhy you'll love it
- Rail shreds just as hard as its non-electric brethren, plus it powers you right back up the mountain—no shuttle or lift necessary
- The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
- Made with the same exclusive frame tech as Remedy and Slash, 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
- 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 remove the battery without tools and lets you mount a water bottle cage
New Bosch Performance Line CX
The all-new Bosch Performance Line CX motor is lighter, smaller, and quieter than previous versions, for cleaner integration and more nimble handling. It's also more efficient so you can go farther on a single battery charge. Use the intelligent eMTB mode to automatically adjust the amount of assist to match the terrain. It's a set-and-forget mode that delivers just the right amount of power so you can focus on enjoying the ride.
Custom eMTB Lite mode
Trek eMTBs feature a custom eMTB Lite mode in place of Tour mode. It gives you more natural-feeling power delivery and longer battery life.
Integrated speed sensor
You've got one less detail to sweat with the integrated speed sensor. The chainstay-mounted sensor stays protected while the custom hub-mounted magnet stays secure—no more error codes from mis-aligned sensors.
*spec applies to all sizes unless otherwise noted
|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, e-MTB optimized, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel|
|Shock||RockShox Deluxe Select+, 230x57.5mm|
|Max compatible fork travel||170mm|
|Hub front||Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle|
|Hub rear||Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm 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||29x2.60"|
|Shifter||SRAM SX Eagle single-click, 12 speed|
|Rear derailleur||SRAM SX Eagle|
|Crank||SRAM X1 1000, 34T, 165mm length|
|Cassette||SRAM PG-1210 Eagle, 11-50, 12 speed|
|Chain||SRAM SX Eagle, 12 speed|
|Pedal||VP-536 nylon platform|
|Max chainring size||34T|
|Saddle||Bontrager Arvada, steel rails, 138mm width|
TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
M, L, XL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
|Handlebar||Bontrager alloy, 31.8mm, 15mm rise, 750mm width|
|Grips||Bontrager XR Trail Comp, nylon lock-on|
|Stem||Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length|
|Brake||Tektro HD-M745 4-piston hydraulic disc|
|Brake rotor||Tektro, 203mm, 6-bolt|
|Battery||Bosch PowerTube 500|
|Charger||Bosch compact 2A (100-240V) charger|
|Motor||Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist|
|Weight||M - 23.53 kg / 51.88 lbs (with tubes)|
|Weight limit||This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).|
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
153.0 - 166.5 cm
5'0.2" - 5'5.6"
72.0 - 79.0 cm
28.3" - 31.1"
161.0 - 175.0 cm
5'3.4" - 5'8.9"
76.0 - 82.0 cm
29.9" - 32.3"
174.0 - 188.0 cm
5'8.5" - 6'2.0"
82.0 - 88.0 cm
32.3" - 34.6"
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
All measurements provided in cm unless otherwise noted.
|Frame size number||Frame size letter||Geometry position||Wheel size||A — Seat tube||Effective seat tube angle||C — Head tube length||D — Head angle||E — Effective top tube||F — Bottom bracket height||G — Bottom bracket drop||H — Chainstay length||I — Offset||J — Trail||K — Wheelbase||L — Standover||M — Frame reach||N — Frame stack||Stem length|