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2021 Small SKU: BRD25080

Trek Powerfly 4 Mountain E-Bike - 2021, Small

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TPC Guarantee

Every bike receives our white glove, Certified Pre-Owned treatment, including a full pro-tune by our Master Mechanics in Louisville, CO. All CPO bikes are pristine and rolling beautifully before we pack and ship to your door.

Master Mechanic's Notes
- Small cosmetic paint chip on head tube & non drive side of down tube.

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141-Point Inspection

This bike passed our 141-point inspection to qualify to be a Certified Pre-Owned bike. It's free of structural damage and is in excellent cosmetic shape.

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30-Day Hassle-Free Returns

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RideFast Shipping

Assemble your bike in 15 minutes or less! Our bikes ship in our RideFast box for speed and safety. All tools you need to assemble are included.

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Year 2021
Brand Trek
Model Powerfly 4
Size Small
Frame Material Aluminum
Drivetrain Shimano, 1x10 spd
Weight 49 lbs 8 oz
Fork SR Suntour XCM 34
Fork Travel 120mm
Brakes Tektro HD-M275, Disc Brakes - Hydraulic
Shifters Shimano Deore M4100, Mechanical
Rear Derailleur Shimano Deore M4100
Crankset FSA Bosch CK-220, 36t, 165mm
Cassette Shimano Deore M4100, 11-46t
Chain KMC
Handlebar Bontrager Alloy, 720mm
Headset Integrated
Stem Bontrager Alloy, 31.8mm x 60mm, 7°
Seatpost Bontrager Alloy, 31.6mm
Saddle Bontrager Commuter Comp
Front Axle Spacing 15x110mm (Boost)
Rear Axle Spacing 12x148mm Boost
Wheelset Bontrager Connection Disc Aluminum, Bontrager
Front Tire Bontrager XR3, 27.5" x 2.35"
Rear Tire Bontrager XR3, 27.5" x 2.35"
Tire Type Clincher
Tubeless Compatibility Wheels are not tubeless compatible
Motor Bosch Performance CS
Torque 75 Nm
Wattage 250 W
Battery Bosch PowerTube 500
Top Speed 20 mph
Mileage 313 mph
Key Included Yes
Charger Included Yes


Recommended Rider Height 5'2" - 5'6"
a. Effective Top Tube 598 mm
b. Seat Tube 394 mm
c. Seat Tube Angle 71.6°
d. Head Tube Angle 67.6°
e. Head Tube 130 mm
f. Stack 623 mm
g. Reach 390 mm
h. Standover Height 722 mm
i. Saddle Height Range N/A

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.


“In the past month, I purchased a road bike and MTB from TPC. Very happy with the price and condition of both bikes! I was riding the bikes 10 minutes after I received them.”

— David H.

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