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2021 Trek Powerfly 4 E-Bike
(discontinued)

Discontinued
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Related:
Trek
Where To Buy
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
$3,649.99
Powerfly 4 Gen 4
$3,649.99
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.

Specifications

Product
Trek Powerfly 4 E-Bike
Model Year
2021
Riding Type
Cross Country
Trail
Rider
Unisex
Sizes and Geometry
XS
SM
MD
LG
XL
Wheel Size
27.5" (650b)
29"
E-Bike Class
Class 1: Pedal Assist (Pedelecs)
Motor
Bosch Performance CX, magnesium motor body, 250W, 75 Nm torque
Battery
Bosch PowerTube 500, integrated, removable
Battery Capacity
500 Wh
Display/Remote
Bosch Purion
Modes
Turbo, Sport/eMTB, Tour, Eco, Walk Assist
Max Speed with Assist
20 mph (32 km/h)
Frame Material
Aluminum
Frame Material Details
Alpha Platinum Aluminum, Motor Armor
Rear Travel
Hardtail
Rear Shock
N/A
Fork
SR Suntour XCM 34, coil spring, preload adjust, lockout, 44mm offset
Fork Travel
XS: 80mm
SM/MD/LG/XL: 120mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
FSA IS-2
Handlebar
Bontrager alloy, 31.8mm clamp diameter, 15mm rise, 720mm width (XS/SM), 750mm width (MD/LG/XL)
Stem
Bontrager alloy, 31.8mm bar clamp, Blendr compatible, 7° rise
Length: 50mm (XS), 60mm (SM/MD), 70mm (LG/XL)
Grips
Bontrager XR Endurance Comp, lock-on
Brakes
Tektro HD-M275, 2-piston, Tektro 6-bolt 203mm rotors
Brake Levers
Tektro HD-M275
Drivetrain
1x
Shifters
Shimano Deore M4100, 10-speed
Front Derailleur
None
Rear Derailleur
Shimano Deore M4100, 10-speed
Chainguide
None
Cranks
FSA Bosch CK-220, 165mm length
Chainrings
FSA, 36 tooth
Pedals
VP-536 nylon platform
Chain
KMC X10, 10-speed
Cassette
Shimano Deore M4100, 10-speed, 11-46 speed
Rims
Bontrager Connection, double-wall, 32-hole, 20mm width
Hubs
Front: Formula DC-511, 6-bolt rotor mount, 15x110mm Boost
Rear: Bontrager alloy, sealed bearing, 6-bolt rotor mount, 12x148mm Boost rear with HG driver
Spokes
14g, stainless steel
Tires
Bontrager XR3 Comp, wire bead, 30 TPI, 27.5" x 2.35" (XS/SM) or 29" x 2.3" (MD/LG/XL)
Saddle
Bontrager Commuter Comp
Seatpost
Bontrager alloy, 12mm offset
Length: 330mm (XS/SM), 360mm (MD), 400mm (LG/XL)
Seatpost Diameter
31.6mm
Seatpost Clamp
Single bolt
Rear Dropout / Hub Dimensions
12x148mm Boost
Max. Tire Size
 
Bottle Cage Mounts
Two inside front triangle
Colors
Lithium Grey/Trek Black, Factory Orange/Lithium Grey, Matte Solid Charcoal/Matte Miami
Warranty
Lifetime frame and wheels; 2 years Trek/Bontrager parts and paint/decals
Weight
52 lb 2.9 oz (23,670 g)
Miscellaneous
XS/SM get 27.5" wheels; MD/LG/XL get 29" wheels
Removable Integrated Battery (RIB) system
Control Freak internal cable routing
Weight given for MD frame with tubes
Includes Bosch compact 2A (100-240V) charger
Includes rack, fender, and kickstand mounts
Price
$3,699.99
More Info

trekbikes.com

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Where To Buy
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
$3,649.99
Powerfly 4 Gen 4
$3,649.99
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
E-Bikes