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Ready to ride further, faster, and with way more fun? This Trek Powerfly 4 625 is the perfect entry into the world of electric mountain biking — combining trail capability with everyday versatility.

With its upgraded 625Wh battery, this model delivers impressive range, meaning longer rides and bigger adventures without worrying about running out of power.

Powered by the Bosch Performance CX motor (250W, 75Nm), you’ll get smooth, punchy assistance up to 25 km/h — perfect for climbs, commutes, and everything in between. The intuitive Bosch Purion controller keeps things simple, with smart eMTB mode that automatically adjusts support based on terrain

Ready to ride further, faster, and with way more fun? This Trek Powerfly 4 625 is the perfect entry into the world of electric mountain biking — combining trail capability with everyday versatility.

With its upgraded 625Wh battery, this model delivers impressive range, meaning longer rides and bigger adventures without worrying about running out of power.

Powered by the Bosch Performance CX motor (250W, 75Nm), you’ll get smooth, punchy assistance up to 25 km/h — perfect for climbs, commutes, and everything in between. The intuitive Bosch Purion controller keeps things simple, with smart eMTB mode that automatically adjusts support based on terrain

Trek

TREK POWERFLY 4 ELECTRIC HARDTAIL MOUNTAIN BIKE - MEDIUM 17 INCH FRAME

£1,795.00
Size Guide
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Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

TREK POWERFLY 4 ELECTRIC HARDTAIL MOUNTAIN BIKE - MEDIUM 17 INCH FRAME

Season:2021

Brand:Trek

Code:2021TREKPOWERFLY4MED

Trek Powerfly 4 625 – Electric Mountain Bike | Low Miles | Upgraded 🚵‍♂️⚡

Ready to ride further, faster, and with way more fun? This Trek Powerfly 4 625 is the perfect entry into the world of electric mountain biking — combining trail capability with everyday versatility.

With its upgraded 625Wh battery, this model delivers impressive range, meaning longer rides and bigger adventures without worrying about running out of power.

Powered by the Bosch Performance CX motor (250W, 75Nm), you’ll get smooth, punchy assistance up to 25 km/h — perfect for climbs, commutes, and everything in between. The intuitive Bosch Purion controller keeps things simple, with smart eMTB mode that automatically adjusts support based on terrain.

Key Features:

  • Medium frame — suitable for riders approx. 5'5" to 5'9" (165–175 cm)
  • Long-range 625Wh Removable Integrated Battery (RIB)
  • Bosch Performance CX motor (250W, 75Nm)
  • Bosch Purion controller with Walk Assist & eMTB mode
  • 1x10 Shimano Deore drivetrain
  • SR Suntour 80mm suspension fork with lockout
  • Hydraulic disc brakes for confident stopping
  • Smart Wheel Sizing (frame-specific wheel setup)

Upgrades & Extras:

  • ProGuard front & rear mudguards
  • Redshift ShockStop suspension seatpost
  • Specialized Mimic saddle
  • Burgtec flat pedals
  • Bolt-on kickstand
  • Bottle cages fitted
  • Ravemen FR1000 front light included

Condition:
This bike has seen very light use with only around 150 miles ridden. It’s in excellent condition, fully serviced, and ready to go.

Why This Bike?
Whether you're commuting, exploring trails, or just want to ride further with less effort, the Powerfly 4 625 delivers. It’s powerful, comfortable, and incredibly versatile — with upgrades that make it even better straight out of the gate.

A seriously capable e-MTB at a great value — don’t miss this one!

Technical Information
Weight23.67 kg / 52.18 lbs (with tubes)
Frameset
FrameAlpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148
ForkSR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 120 mm travel
Wheels
Front HubFormula DC-511, 6-bolt, Boost110, 15 mm thru axle
Rear HubBontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
RimBontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve
TyresBontrager XR3 Comp, wire bead, 30 tpi, 29x2.30"
Drivetrain
ShiftersShimano Deore M4100, 10 speed
Rear derailleurShimano Deore M5120, long cage
CassetteShimano Deore M4100, 11-46, 10-speed
ChainKMC X10, 10-speed
PedalsBurgtec MKS
Components
SaddleBontrager Commuter Comp
SeatpostRedshift suspension seatpost
HandlebarBontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
HeadsetFSA IS-2, 1-1/8" top, 1.5" bottom
GripsBontrager XR Endurance Comp
StemBontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
HeadsetFSA IS-2, 1-1/8" top, 1.5" bottom
BrakesetTektro HD-M275 hydraulic disc
BatteryBosch PowerTube 625
ChargerBosch compact 2A (100-240 V) charger
ControllerBosch Purion
MotorBosch Performance CX, magnesium motor body, 250 watt, 75 Nm, 20 mph (25 km/h in Europe) max assist
Sizing Information
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