Trek Rail 5 2021
Rail 5 is an electric mountain bike built for ripping the big stuff. It features the same high-end trail tech as our analogue trail bikes, plus a powerful new Bosch drive system that's basically like having your own shuttle.
Spec
Frame
Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, magnesium rocker link, Motor Armour, Mino Link, ABP, Boost148, 12 mm thru axle, 150 mm travel
Fork
RockShox 35 Gold RL, DebonAir spring, Motion Control damper, e-MTB optimised, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 160mm travel
Shock
RockShox Deluxe Select+, 230x57.5 mm
Max compatible fork travel
170mm
Wheels
Front hub
Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
Rear hub
Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
Rear skewer
Bontrager Switch thru axle
Rim
Alex MD35, Tubeless Ready, 32-hole, 35 mm width, Presta valve
*Tyre
Size: S, M, L, XL
Schwalbe Nobby Nic Performance, tubeless, aramid bead, 29x2.60''
Size: S, M, L, XL
Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60"
Max tyre size
29x2.60"
Drivetrain
Shifter
SRAM SX Eagle single-click, 12-speed
Rear derailleur
SRAM SX Eagle
Crank
SRAM X1 1000, 36T, 165 mm 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
Components
Saddle
Bontrager Arvada, steel rails, 138 mm width
*Seatpost
Size: S
TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length
Size: M, L, XL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm 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
Tektro HD-M745 4-piston hydraulic disc
Brake rotor
Tektro, 203 mm, 6-bolt
Accessories
Battery
Bosch PowerTube, vertical, 500 wh
Charger
Bosch compact 2A (100-240 V) charger
Controller
Bosch Purion
Motor
Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm, 20 mph (25 km/h in Europe) max assist
Why 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