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 150 mm of rear travel that fully encases a long-range 625 Wh battery, an e-MTB optimised 160 mm RockShox 35 Gold RL fork, a powerful Bosch Performance Line CX (250 W, 85 Nm) motor that assists up to 20 mph (25 km/h in Europe) and a Purion controller. Plus, a 1x12 drive train 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" tyres.
The final word
The Rail 5 625 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. Plus, the bigger battery means more time on the trail.
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 bigger battery means you can adventure for longer between charges
- 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 hard-charging frame tech as Remedy, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness and Active Braking Pivot (ABP)
- 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
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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 further 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.
Bosch Purion Display
Bosch's Purion display features a fully-functional speedometer with a backlit display, service interval indicator and battery range indicator. Its thoughtful design allows riders to scroll through functions or choose the right level of support while maintaining contact with the handlebars.
*spec applies to all sizes unless otherwise noted
|Fork||RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm Maxle Stealth, 160 mm travel|
|Max compatible fork travel||170mm (580mm axle-to-crown)|
|Hub front||Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle|
|Hub rear||Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle|
|Rim||Alex MD35, tubeless compatible, 32-hole, 35 mm width, Presta valve|
|Tyre||Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60"|
|Max tyre size||Frame: 29x2.60" Fork: See manufacturer|
|Shifter||Shimano Deore M6100, 12-speed|
|Rear derailleur||Shimano Deore M6100, long cage|
|Crank||E*thirteen E*spec Plus, 34T, 165 mm length|
|Cassette||Shimano Deore M6100, 10-51, 12-speed|
|Chain||Shimano Deore M6100|
|Pedal||VP-536 nylon platform|
|Max. chainring size||34T|
|Saddle||Bontrager Arvada, steel rails, 138 mm width|
TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length
Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length
M, L, XL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length
M, L, XL
Bontrager Line Dropper, 125mm travel, internal routing, 31.6 mm, 395mm length
|Handlebar||Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm 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 calliper|
|Brake rotor||Shimano RT76, 6-bolt, 203 mm|
|Battery||Bosch PowerTube 625|
|Charger||Bosch compact 2A (100-240 V) charger|
|Weight||M - 52.65 lbs / 23.88 kg|
|Weight limit||This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).|
Sizing & Tech
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 stated.
|Frame size number||Frame size letter||Geometry position||Wheel size||A — Seat tube||B — Seat tube angle||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|