Trek Powerfly 4, XS, 27.5'' Wheels (2022) Matte Solid Charcoal/Matte Miami

$3,799.99
SBC ID | MFG SKU - 210000067514 | 1042647
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Powerfly 4 is our most affordable electric mountain bike.

It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that's fully encased in the frame yet doesn't require tools for removal. This bike expands your boundaries and lets you travel to destinations you never thought you'd reach on a mountain bike.

Why you'll love it

  1. 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
  2. This bike expands boundaries: the top-notch Bosch system is equally suited to commuting, recreation, and a ridiculously fun time on the trails
  3. The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
  4. It's equipped with an external charging port for easy charging on or off the bike
  5. You can boost your Powerfly’s utility by adding a rack and fenders, plus built-in wiring lets you easily install lights powered by the motor

It's right for you if...

You're sold on the e-bike revolution and want the capability and versatility of a mountain bike at a price that doesn't resemble the car you're trying to use less. You want bigger, better off-road adventures, and know an e-MTB with the latest user-friendly tech is the best way to get them.

The tech you get

A tough yet refined aluminum frame that fully encases a long-range 500Wh battery for sleek looks, a Bosch Performance CX (250W, 75Nm) motor that assists up to 20 mph or 32 km/h, a Bosch Purion controller, a 1x10 Shimano drivetrain, and a suspension fork with lockout. Plus, Smart Wheel Sizing means riders of every size get a great fit—29˝ wheels on larger frames, 27.5˝ wheels on smaller frames.

The final word

Our most affordable electric mountain bike comes with the same powerful Bosch motor and intuitive controller as our most expensive e-bikes, with a smaller battery and parts chosen to give you great value.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle
*Fork Size: XS
SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 80mm travel
Size: S , M , L , XL
SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 120mm travel
Hub front Formula DC-511, 6-bolt, Boost110, 15mm thru axle
Hub rear Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle
Skewer rear Bontrager Switch thru axle, removable lever
Rim Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve
Spokes 14g stainless steel
*Tire Size: XS , S
Bontrager XR3 Comp, wire bead, 30tpi, 27.5x2.35''
Size: M , L , XL
Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30''
Shifter Shimano Deore M4100, 10 speed
Rear derailleur Shimano Deore M5120, long cage
Crank FSA Bosch CK-220, 36T ring, 165mm length
Cassette Shimano Deore M4100, 11-46, 10 speed
Chain KMC X10, 10 speed
Pedal VP-536 nylon platform
Saddle Bontrager Commuter Comp
*Seatpost Size: XS , S
Bontrager alloy, 31.6mm, 12mm offset, 330mm length
Size: M
Bontrager alloy, 31.6mm, 12mm offset, 360mm length
Size: L , XL
Bontrager alloy, 31.6mm, 12mm offset, 400mm length
*Handlebar Size: XS , S
Bontrager alloy, 31.8mm, 15mm rise, 720mm width
Size: M , L , XL
Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips Bontrager XR Endurance Comp, lock-on
*Stem Size: XS
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length
Size: S , M
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length
Size: L , XL
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length
Headset FSA IS-2, 1-1/8'' top, 1.5'' bottom
Brake Tektro HD-M275 hydraulic disc
Brake rotor Tektro, 6-bolt, 203mm
Battery Bosch PowerTube 500
Charger Bosch compact 2A (100-240V) charger
Controller Bosch Purion
Motor Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist
Weight M - 23.67 kg / 52.18 lbs (with tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

 

Sizing & fit

This Large frame generally fits someone from 5'8" to 6'2", but there are some other factors, like arm and leg length, that determine a great fit. That’s why the best way to find your perfect fit is to consult the experts here at Sunshine Bicycle Center.