Powerfly 4

Powerfly 4

Brand
trek
Year

2021

Category
electric
Price

$3450

Official
Site →
Manufacturer Description

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.

Build Kit

Frameset
FrameAlpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle
ForkSize: XS , SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 80 mm travel
Rear Shock-
Cockpit
GripsBontrager XR Endurance Comp, lock-on
HandlebarsSize: XS , S , Bontrager alloy, 31.8mm, 15mm rise, 720mm width
SaddleBontrager Commuter Comp
SeatpostSize: XS , S , Bontrager alloy, 31.6mm, 12mm offset, 330mm length
StemSize: XS , Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length
Brakes
Levers-
Front BrakesTektro HD-M275 hydraulic disc
Rear BrakesTektro HD-M275 hydraulic disc
Drivetrain
Bottom Bracket-
CassetteShimano Deore M4100, 11-46, 10 speed
ChainKMC X10, 10 speed
Chain Rings-
ChranksetFSA Bosch CK-220, 36T ring, 165 mm length
Front Derailleur-
Rear DerailleurShimano Deore M5120, long cage
Pedals-
Shifters-
Wheels
Front Hub-
Rear Hub-
Spokes-
Front Tire-
Rear Tire-
Tubes-
Front Wheel-
Rear Wheel-
Electric
BatteryBosch PowerTube 500
ChargerBosch compact 2A (100-240V) charger
Display-
MotorBosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist

Geometry

XSSMLXL
BB Drop3.74.94.955
BB Height32.830.732.432.432.4
Chainstay Length45.545.545.545.545.5
Crank Length-----
Fork Length-----
Fork Rake Offset5.14.25.15.15.1
Front Center-----
Handlebar Width-----
Headtube Angle65.0°67.6°67.7°67.7°67.7°
Headtube Length1213131416
Reach35.23940.642.745.2
Saddle Width-----
Seatpost Length-----
Seat Tube Angle-----
Seat Tube Length36.339.441.94752.1
Stack62.162.363.964.966.7
Standover Height74.372.279.575.876.8
Stem Length-----
Top Tube Length57.959.861.864.167.2
Trail11.410.19.89.89.8
Wheelbase113.5112.5115.3118121.2