Powerfly 5 is a highly capable electric mountain bike for a great value. It pairs a high-end Bosch e-MTB drive system with durable mountain bike components built to stand up to the trail. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that fully encases the battery in the frame, yet doesn't require tools for removal. This bike is versatile, capable and ready for adventure.
It's right for you if...
You've seen the e-bike light and want to expand your boundaries. Like us, you believe that nothing should stand between you and your next great ride, including big climbs, headwinds and rugged trails you wouldn't otherwise be able to explore.
The tech you get
A lightweight and durable Alpha Platinum Aluminium frame that fully encases a 500 Wh battery for sleek looks and protection on the trail, a new Bosch Performance CX 250-watt motor that assists up to 25 km/h and an ergonomic Bosch Purion controller. A RockShox Recon RL fork with 120 mm of travel and a SRAM SX Eagle 1x12 drivetrain.
The final word
The best Bosch mountain bike electric assist system available on a value-minded e-MTB built with durable, reliable parts. The drivetrain, suspension and components deliver solid all-around performance, so you can commute to the trailhead and then spend all day riding.
Why you'll love it
The new, better-than-ever Bosch motor is smaller, lighter and more efficient. It feels more natural while you’re pedalling, and has less drag when you’re not
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
The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
It's equipped with an external charging port for easy charging on or off the bike
The size S frame features a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits – 29˝ wheels on larger frames, 27.5˝ wheels on smaller frames
Features
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.
Removable Integrated Battery
RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security or just easier charging.
Specifications
Frameset
Frame
Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle
Fork
RockShox Recon RL, Solo Air spring, Motion Control damper, e-MTB optimised, tapered steerer, 46mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel
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
Rims
Bontrager Kovee, double-wall, Tubeless Ready, 32-hole, 23 mm width, Presta valve
Tyres
Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.30"
Drivetrain
Shifters
SRAM SX Eagle single-click, 12-speed
Rear derailleur
SRAM SX Eagle
Crank
SRAM X1 1000, 36T
Cassette
SRAM PG-1210 Eagle, 11-50, 12-speed
Chain
SRAM SX Eagle, 12-speed
Pedals
VP-536 nylon platform
Components
Saddle
Bontrager Commuter Comp, 165 mm width
Seatpost
Bontrager alloy, 31.6 mm, 12 mm offset
Handlebar
Bontrager alloy, 31.8 mm, 15 mm rise
Grips
Bontrager XR Endurance Comp, lock-on
Stem
Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree
Head set
FSA IS-2, 1-1/8" top, 1.5" bottom
Brake set
Tektro HD-M275 hydraulic disc
Accessories
Battery
Bosch PowerTube, vertical, 500 wh
Controller
Bosch Purion
Motor
NEW Bosch Performance Line CX, 250 Watt, 75 Nm, magnesium body, 25 km/h max assist
Weight
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
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, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production
Buy Trek Powerfly 5 EU 2020 Electric Mountain Bike online and collect from our Kings Lynn, Gorleston or Norwich Bike shop