Trek Powerfly 4 Gen 4 Mountain Bike
Removable Integrated Battery
RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security, or just easier charging.
Bosch Performance Line CX motor
Bosch Performance Line CX sets the standard for eMTB performance with up to 85Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
Bosch LED Remote
The Bosch smart system LED remote lets you easily change assist modes, activate walk mode, or turn on optional lights. The bright LEDs are easy to see in any light, and show you your battery level and assist mode at a glance.
Bosch eBike Flow app
The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motor’s assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. There’s even handy features like navigation and service reminders.
Will my bike have a curved top tube?
Smaller frames (XS, S and M) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. The larger frame (L) has a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
| *Frame | Size: XS , S Alpha Platinum Aluminum, curved top tube, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle |
|---|---|
| Size: M , L , XL Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle |
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| *Fork | Size: XS SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 80mm travel |
| Size: S , M , L , XL SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 120mm travel |
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| Max compatible fork travel | 120mm (526mm axle-to-crown), XS: 80mm (492mm axle-to-crown) |
| Hub front | Formula DC-511, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| Hub rear | Bontrager Approved DC-3248, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Rim | Bontrager Connection, double-wall, 32-hole, 20mm width, Presta valve |
| *Tire | Size: XS , S Bontrager XR3 Comp, wire bead, 30tpi, 27.5×2.35” |
| Size: M , L , XL Bontrager XR3 Comp, wire bead, 30tpi, 29×2.30” |
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| Max tire size | Frame: 29×2.60″ or 27.5×2.80″ (XS & S: 27.5×2.60″), Fork: See manufacturer |
| Shifter | Shimano Deore M4100, 10 speed |
|---|---|
| Rear derailleur | Shimano Deore M5120, long cage |
| Crank | FSA Bosch CK-220, 36T ring, 165mm length |
| Chainring | FSA, 36T, steel |
| Cassette | Shimano Deore M4100, 11-46, 10 speed |
| Chain | KMC X10, 10 speed |
| Pedal | VP-536 nylon platform |
| Max chainring size | 1x: 38T |
| Saddle | Bontrager Commuter Comp |
|---|---|
| *Seatpost | Size: XS , S Bontrager alloy, 31.6mm, 12mm offset, 330mm length |
| Size: M Bontrager alloy, 31.6mm, 12mm offset, 360mm length |
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| Size: L , XL Bontrager alloy, 31.6mm, 12mm offset, 400mm length |
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| *Handlebar | Size: XS , S Bontrager alloy, 31.8mm, 15mm rise, 720mm width |
| Size: M , L , XL Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
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| Grips | Bontrager XR Endurance Comp, lock-on |
| *Stem | Size: XS Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length |
| Size: S , M Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length |
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| Size: L , XL Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length |
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| Headset | FSA IS-2, 1-1/8” top, 1.5” bottom |
| Brake rotor | Tektro, 6-bolt, 203mm |
| Brake Set | Tektro HD-M275 hydraulic disc |
| Rotor size | Max brake rotor sizes: Front see fork manufacturer, rear 203mm |
| Battery | Bosch PowerTube 500Wh, smart system |
|---|---|
| Charger | Bosch standard 4A, 110V, smart system |
| Controller | Bosch Intuvia 100, smart system |
| Motor | Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm |
| Computer | Bosch LED remote, smart system |
| Weight | M – 23.94 kg / 52.78 lbs |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
| Size | Rider Height | Inseam |
|---|---|---|
| XS |
145 – 155 cm 4’9″ – 5’1″ |
69 – 73 cm 27″ – 29″ |
| S |
155 – 165 cm 5’1″ – 5’5″ |
74 – 78 cm 29″ – 31″ |
| M |
165 – 176 cm 5’5″ – 5’9″ |
79 – 83 cm 31″ – 33″ |
| L |
177 – 188 cm 5’10” – 6’2″ |
84 – 89 cm 33″ – 35″ |
| XL |
188 – 195 cm 6’2″ – 6’5″ |
89 – 91 cm 35″ – 36″ |
Ivan Yevpak –
Fantastic service and great value
Priscylia muriani –
Reliably good, prompt service at competitive prices.