F5 Trail

Regular price $3899 Sale price $3599 Save $300



The F5 Trail 27.5 is our best-selling electric mountain bike. Built with 27.5" mountain wheels and Maxxis cross country tires for on or off-road travels, there is no limit to where you can ride. The bike has an incredible 840Wh battery and a powerful M600 Bafang mid-drive motor to electrify your adventure. Get up to 90 miles of range and 28 Mph (Class 3) top speed! Rewrite your story now and carve your own trail! 

What's New?

  • New Geometry - We've made more improvements on the already stellar geometry for better comfort and handling while riding
  • Integrated Battery - The battery is hidden inside down tube with an aggressive look and cleaner lines
  • Magura MT5 - 4 Piston hydraulic disc brakes
  • Suntour XCR Front Forks - Adding an extra 10m of Travel
  • Shimano Deore 10 Speed Shifter - Now Standard
ESTIMATED TO SHIP: 7-10 Business Days from Purchase


Standard - Comes 75% assembled with

  • E-Bike
  • Lithium Battery
  • Charger
  • Everything you need to ride

Touring - Includes everything from the standard configuration and

  • Cargo Rack
  • Front and Rear Fenders
  • Suspension Seatpost (5'7" Minimum Height Required for Suspension Seat)
  • Comfort Seat
  • Smartphone Mount
  • Integrated Headlight and Taillight



Suspension Fork

The XCR34 LO R Air is SR Suntour’s first offering for an XC/Trail fork in the boost wheel size with an adjustable chamber. The fork has adjustable air pressure, rebound, and a hydraulic lockout that can be used on the fly.


4 Piston Hydraulic Disc Brakes

Don’t settle for cheap mechanical disc brakes. A powerful bike should have the most powerful brakes to keep your safety a priority. The Magura MT5s offer outstanding braking force that’s perfect for bike parks or the home trail.


Shimano Deore 10 Speed Drivetrain

This 10-speed drivetrain lets the mid-motor shine and apply its torque over 10 different gear ratios to maximize acceleration, hill climbing, and top speed. The 11-36T cassette has a wide range and is built to last.


M600 Mid Motor

The M600 is the most advanced and powerful motor of its kind on the market. Beautifully compact and packing a whopping 500W and 120Nm of torque, this workhorse is a serious performer. Using the bike's gears, it achieves optimum hill climbing, range, and speed.


Quick Release Thru-Axle

Other bikes use toothpick-sized skewers to keep the wheels on. This can save costs - but with a single failure point, wheels can release while riding - a dangerous situation. Instead, we've invested in beefy thru-axles with redundant failure points. The thickness of the thru-axles makes them more durable and provides a more stable ride at all speeds.


In Frame Lithium Battery

We've upgraded our batteries from 36V to 48V giving you even more range and power! We sourced the highest capacity cells in the world, the same ones used in the Tesla Model S. Charging time is 3 hours for the 650WH battery and 4 hours for the 840 WH battery.


Suntour Suspension Seat

The NCX seat post has been engineered and built for years of comfort and performance. The unique and patented parallelogram design allows for smooth small bump compliance with a total of 50mm travel to make for a smooth ride.


LCD Display

Like a cockpit for your bike, see how fast you’re going, how far you’ve ridden, average speed, and battery life. Plugin your USB cable into the USB port on our LCD screen, turn the LCD screen on and let your phone charge while you’re on the go.



ECONOMY MODE (Power Level 1): Up To 90 Miles* (840WH Battery)
SPEED MODE (Power Level 5): Up To 40 Miles* (840WH Battery)
Experienced rider in optimal conditions, your mileage may vary.



Up to 28 mph* (45 kph) (20 mph with Throttle Only)

*Where local laws permit


TYPE: Bafang M600 (Mid-Mounted Geared Motor)
NOMINAL/PEAK OUTPUT: 500 watts / 850 watts
TORQUE: 120 Newton meters


TYPE: LG / Panasonic (Lithium-Ion, 48 Volts) Removable w/key lock
WATT HOURS: 650Wh / 840Wh
CHARGE TIME: 3 hours / 4.5 hours


MODULES: FLX Branded Bafang DPC-240 (CAN Communication Protocol)
READOUTS: Current Speed, Max Speed, Average Speed, Odometer, Tripometer, Battery in Percentage, Assist Level (0-5)
DISPLAY ACCESSORIES: Independent Button Pad on Left, USB Charging Port
DRIVE MODE: Torque Sensing Pedal Assist (Throttle Optional) 

Bike Details

WEIGHT (No Battery) 50.5 lbs
RATED WEIGHT CAPACITY 275 lbs (124.74 kg)
FRAME MATERIAL: 6061 Aluminum Alloy
FRAME COLORS: Black, Red, Green, Blue
FORK: SR Suntour XCR Spring Suspension with 130 mm Travel, 1-1/8" x 1-1/2" Tapered Steer Tube, Lockout, Preload Adjust, Quick Release M15x110mm (Boost) Thru Axle
THRU AXLE DETAILS: M12x148mm (Boost) Quick Release Thru-Axle
ACCESSORY MOUNTS: Top Mounted Downtube Bottle Cage and Rear Rack Bolt Holes
DRIVETRAIN: Shimano Deore 10-Speed Cassette, Derailleur, Shifter, and Bafang Spline 170mm Cranks with a 40T Front Chainring
PEDALS: Wellgo KC005 Aluminum Alloy Platform
HEADSET: Threadless, Internal Cups, Tapered, Sealed Bearings.
STEM: 6061 Aluminum Alloy, 90 mm Length, Two 10 mm Risers, 31.8 mm Clamp Diameter
HANDLEBAR: Low-Rise 770mm Aluminum Bars
BRAKE SET: Magura Hydraulic MT5 Quad Piston Brakes with Adjustable Reach Levers, 203mm Rotors
GRIPS: Velo Flat Rubber with Lockers
SADDLE: FLX Branded Velo, Active
RIMS: Aluminum Alloy, Double Walled, 25.6 mm Width, 32 Hole, Reinforcement Eyelets
SPOKES: Stainless Steel, 13G, Black with Nipples
TIRES: Maxxis Forekaster, 27.5" x 2.35"
WHEEL SIZES: 27.5 in (69.85cm)
TUBE VALVES: Schrader Valve


f5-trail geometry

Customer Reviews

Based on 15 reviews
Randy Sandmeyer
Love it!

I just turned over 1600 miles on my Trail 5. I have been riding on trails that are probably 7 on a ten scale and the bike performs beautifully going up hills, through deep sand, over rocks whatever. I am 69 years old and riding better than ever due to the F5. At first I only rode on streets and along canals. Since I started taking it on the trails my passion for mountain biking is stronger than ever. My one complaint is the design of the kickstand as I have hit my heel on it while pedaling. I have been able to accommodate this, but it is very poorly placed and designed. The ride of the bike is fantastic though. If riding on streets I can get at least 50 - 60 miles on a charge. If your battery is down to 30 percent or so head home because the last 20-25 percent of the battery is not much help.

John Bellacera
FLX F5 Trail Bike

New to e-bikes, however I am very happy with the purchase. I have started using the bike for running errands and am revisiting some trails. I'm sure this will be a well used mode of transportation.
Thank you very much FLX,
John Bellacera

Glen Strouse

Just received the F5 it arrived undamaged
Was very easy to assemble
Have only road it a couple of miles as of yet
Needs better seat for trails I ride, small problem
Looking forward to talking to in the future

Nicolas Petrone
Great bike having a lot of fun with it

F5 It’s a well-made bike having a lot of fun with it just wish I could get a belt drive kit for it like my baby maker has

Julio Britto
Best bike that I ever bought