Powerfly FS 5 is a versatile, confidence-inspiring, full suspension electric mountain bike. This 130mm trail bike features the extra boost of a powerful Bosch motor, a RockShox fork, a trail-tough Shimano drivetrain, and a durable Alpha Platinum Aluminum frame with Removable Integrated Battery (RIB) for better balance on the trail, great looks, and exceptional ease of use.
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It's right for you if...
You want to bring more capability to your mountain biking in the form of a high-performance pedal-assist system. You know an e-bike can change your life and you want the plush ride of a full suspension mountain bike that will stand up to more rugged and technical trails.
The tech you get
A durable Alpha Platinum Aluminum frame that fully encases a long-range 500Wh battery, a powerful Bosch Performance CX drive system that helps you sustain speeds of up to 20 mph, and an ergonomic Purion controller. Plus, a 130mm front and rear travel with a RockShox Recon RL fork, a dropper post, Tubeless Ready Bontrager Kovee 23 rims, a 10-speed Shimano Deore drivetrain, and Shimano hydraulic disc brakes.
The final word
This bike pairs electric-assist performance with singletrack trail capability. It's a fun, forgiving, full suspension ride with an upgraded fork, dropper post, and tubeless ready wheels that can help you reach new destinations on rugged trails.
The Walkthrough
favorite_borderWhy you'll love it
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—even on full suspension e-MTBs
For e-MTB, full suspension is a game-changer: it soaks up rugged terrain so you can ride the Bosch pedal-assist system to its full potential
It's equipped with an external charging port for easy charging on or off the bike
It rides like a mountain bike because it is one: it has the same frame and suspension tech we've refined in our decades-long trail heritage
The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
Bosch's Performance Line CX motor is made specifically for off-road use with more torque and power for better acceleration. The intelligent eMTB mode automatically adjusts the amount of assist to match the terrain. It's a set-and-forget mode that delivers just the right amount of power. You get optimum control, traction, and battery life so you can focus on enjoying the ride.
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.
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
Trek's Straight Shot frame design optimizes the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.
To see how far you can ride your electric mountain bike on a single charge, check out Bosch’s range calculator. We’ve auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.
Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.
This unique protection shield is lightweight yet robust, and protects the motor from rocks, logs, and other trail debris.
Control Freak Cable Management
The lightest, quietest, most versatile cable management system allows any combination of shift, brake, lockout, and dropper post lines to be routed through the frame for clean looks and the ultimate custom setup.
Rear kickstand mount
Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.
Internal dropper compatible
Internal routing ports make it easy to add a dropper post upgrade that lets you lower your saddle on the fly so it's out of your way for tricky sections of trail.
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, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.
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 Trek retailer.
Rider Height
Inseam
S
153.0
- 166.5 cm
5'0.2"
- 5'5.6"
72.0
- 79.0 cm
28.3"
- 31.1"
M
161.0
- 172.0 cm
5'3.4"
- 5'7.7"
76.0
- 81.0 cm
29.9"
- 31.9"
M/L
165.5
- 179.0 cm
5'5.2"
- 5'10.5"
77.0
- 84.0 cm
30.3"
- 33.1"
L
177.0
- 188.0 cm
5'9.7"
- 6'2.0"
83.0
- 88.0 cm
32.7"
- 34.6"
XL
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.
