2021 Trek Powerfly 4 Electric Mountain Bike Red 27.5" Gen 3 Small

Trek Powerfly 4 Electric Mountain Bike – Size Small | Bosch Performance CX | 500Wh | Only 24 Miles

Price: Best Offer Accepted
Condition: Like New
Size: Small
Wheel Size: 27.5"
Mileage: Only 24 miles on the odometer

Bonus: Kickstand and Bike Trailer Attachment included.
Location: Continental US (International buyers please message for shipping quote)

Like-New E-MTB with Ultra-Low Mileage

Offered here is an immaculate Trek Powerfly 4 electric mountain bike, size Small, with just 24 miles of use. This bike is truly like new, showing minimal signs of use and performing exactly as it should. Powered by Bosch’s highly regarded Performance CX mid-drive motor, this Powerfly delivers smooth, reliable, and confidence-inspiring assistance both on and off the trail.

This bike is ideal for riders looking to step into the e-bike world with a trusted brand, proven Bosch system, and exceptional value.

Bosch Power – Ride Farther, Ride Stronger

The Powerfly 4 features Trek’s Removable Integrated Battery (RIB) system, which fully encloses the battery inside the frame for a sleek look and added protection, while still allowing tool-free removal. The Bosch Performance CX motor (250W, up to 85 Nm) provides powerful, natural-feeling assist up to 20 mph (32 km/h).

The Bosch Purion controller offers intuitive control, Walk Assist, and smart power delivery—perfect for commuting, trail riding, or exploring farther than ever before.

Key Features & Specifications

Frameset

• Frame: Trek Alpha Platinum Aluminum

  • Removable Integrated Battery (RIB)

  • Internal cable routing (Control Freak)

  • Motor Armor protection

  • Boost148 rear spacing

• Headset: FSA IS-2, tapered (1-1/8"–1.5")

Motor & Electrical

• Motor: Bosch Performance CX mid-drive, 250W, 85 Nm, magnesium housing

• Battery: Bosch PowerTube 500Wh

• Controller/Display: Bosch Purion

• Charger: Bosch Compact 2A (100–240V)

Drivetrain

• Shifter: Shimano Deore M4100, 10-speed

• Rear Derailleur: Shimano Deore M5120, long cage

• Cassette: Shimano Deore M4100, 11–46T

• Chain: KMC X10

• Crankset: FSA Bosch CK-220, 36T, 165 mm

Brakes

• Brakes: Tektro HD-M275 hydraulic disc

• Rotors: Tektro 203 mm, 6-bolt

Wheels & Tires

• Wheel Size: 27.5" (Small frame)

• Rims: Bontrager Connection, double-wall

• Hubs:

  • Front: Formula DC-511, Boost110

  • Rear: Bontrager alloy, Boost148

• Tires: Bontrager XR3 Comp, 27.5"

Cockpit & Contact Points

• Handlebar: Bontrager alloy, 31.8 mm, 15 mm rise

• Stem: Bontrager alloy, Blendr compatible, 7°

• Grips: Bontrager XR Endurance Comp lock-on

• Seatpost: Bontrager alloy, 31.6 mm

• Saddle: Stock Trek saddle

Color Options (per Trek spec)

• Lithium Grey / Trek Black

• Matte Solid Charcoal / Matte Miami

• Radioactive Red / Trek Black

Why This Bike?

• Only 24 Miles: Extremely low usage

• Bosch Performance CX Motor: Industry-leading reliability and power

• 500Wh Battery: Long-range capability

• RIB Battery System: Clean looks, easy removal, and water bottle compatibility

• Versatile E-MTB: Equally suited for commuting, recreation, and trail riding

• Outstanding Value: Premium Bosch system at an accessible price point

Shipping

Continental US only.
International buyers, please message us to discuss shipping options.

About the Seller

This bike is offered by a knowledgeable seller specializing in high-quality bicycles, maintained with care and attention to detail. Buy with confidence—this Powerfly is ready to ride and enjoy immediately.