About the Trek Powerfly LT 4 Electric Mountain Bike

The Powerfly LT 4 is your full suspension gateway to more exciting trail adventures. For e-MTB’s, full suspension is a game changer: It soaks up rugged terrain, so you can ride the Bosch pedal-assist system to its full potential. Trek have kitted the LT 4 with components which stand up to abuse, like a dependable 10-speed Shimano drive train, longer travel Suntour Zeron suspension and 27.5+ mid-fat tyres, for the perfect combination of traction, stability and capability on rough trails. The Powerfly rides like a trail bike because it is one: Built according to Trek's trail heritage, with mountain bike tech developed over decades of innovation. The heart of the beast is the new high-performance Bosch e-MTB system, built into Treks durable Alpha Platinum Aluminium frame. The specially designed frame features Trek’s new Removable Integrated Battery (RIB) system, which seamlessly integrates the 500Wh battery into the down-tube. All of this makes the Powerfly an ideal companion for long days and bigger, better trail adventures. If you want a bike that gives you a boost on the climbs so you can get rad on the way down, this is the one for you.

The Powerfly features the new, Bosch Performance Line motor, which is smaller, lighter and more efficient than the previous versions. Most importantly for us, it feels more natural while you’re pedalling and has less drag when you’re not receiving any assistance. Ultimately making this one of the lightest, liveliest and most natural feeling e-MTBs we have ever ridden.

The Bosch E-bike system delivers intuitive assistance as you pedal. You can customise this level of assistance via the handlebar mounted Purion controller, which displays ride info, connects with your Bluetooth-enabled devices and allows you to monitor your battery level on the go. The battery itself makes use of Trek's Removable Integrated Battery (RIB) system, which makes it streamlined, discrete and 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 battery also features an external charging port for easy charging on or off the bike.

Key Features

  • Alpha Platinum Aluminium frame is light weight, with 27.5” trail focused geometry and tidy integrated downtube battery housing
  • SR Suntour Zeron 150mm fork, paired with RockShox Deluxe RL rear shock, gives the Powerfly serious suspension performance which excels in a wide range of applications
  • Shimano Deore 1x10 speed drivetrain provides fast and efficient shifting across a wide range of gears, with the fantastic reliability and simplicity of a single chainring setup
  • Tektro HD-M745 hydraulic disc brakes give powerful and controllable stopping power, with minimal effort, in all conditions
  • Schwalbe Nobby Nic Performance, 27.5x2.80" tyres feature a high volume for comfort and an aggressive tread for superior grip
  • New Bosch Performance Line CX, 250 Watt, 75 Nm Motor features improved efficiency and reduced weight. Powered by the Trek integrated 500Wh battery

Trek Powerfly LT 4 2020 Electric Mountain Bike

Rear Shock RockShox Deluxe RL, 205x57.5mm
Fork SR Suntour Zeron, air spring, LO R damper, hydraulic lockout, tapered steerer, 44mm offset, Boost110, 15mm bolt-on thru axle, 150mm travel
Rear Derailleur Shimano Deore M6000, mid cage, 42T max cog
Shifters Shimano Deore M6000, 10 speed
Chain set FSA 310, 15T w/chain guard
Cassette SunRace, 11-42, 10 speed
Chain KMC X10, 10 speed
Pedals VP-536 nylon platform
Front Brake Tektro HD-M745 4-piston hydraulic disc
Handlebars Bontrager alloy, 31.8mm, 15mm rise
Stem Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree
Headset Knock Block Integrated, cartridge bearing, 1-1/8" top, 1.5" bottom
Grips Bontrager XR Trail Comp, nylon lock-on
Rims Alex MD35, Tubeless Ready, 32-hole, 35mm width, presta valve
Front Hub Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear Hub Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle
Front Tyre Schwalbe Nobby Nic Performance, tubeless, aramid bead, 27.5x2.80"
Rear Tyre Schwalbe Nobby Nic Performance, tubeless, aramid bead, 27.5x2.80"
Saddle Bontrager Arvada, steel rails
Seatpost TranzX JD-YSP18, internal routing, 31.6mm
Motor Bosch Performance CX, 250Watt, 75Nm, 25km/h max assist
Battery Bosch PowerTube, vertical, 500wh
Display Bosch Purion

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