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'Powerfly FS wins Best in Test'
'The Powerfly FS blends sporty handling, efficient propulsion and long-distance comfort into a harmonious overall concept. The result: pure riding fun! '
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E-MTB Category Winner
'The jury was enthralled by the upright and comfortable riding position on long tours while the bike also shines on moderate terrain thanks to its fun ride and intuitive handling.'
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How to ride on mountain bike trails
Guidelines and tips for protecting and sharing the trails you ride.
Learn moreFive things to do before every mountain bike ride
Do this quick pre-ride safety check before you hit the trails.
Learn moreProduct features
Bosch Performance Line CX motor
The Bosch Performance Line CX sets the standard for eMTB performance with up to 85 Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
Custom eMTB Lite mode
Trek eMTBs feature a custom eMTB Lite mode in place of Tour mode. It gives you more natural-feeling power delivery and longer battery life.
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.
Adventure-ready accessories
The Powerfly Equipped gives you maximum utility thanks to pre-installed accessories. You get a kickstand, front and rear lights, plus mudguards and a rear rack custom made for clean integration.
What is the range?
To see how far you can ride your electric mountain bike on a single charge, check out Bosch’s range calculator. We’ve auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.
Suspension Calculator
This suspension calculator will help you optimise your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Learn moreBosch Kiox display
Bosch Kiox's bright, full-color screen is easy to read in any light conditions and is protected by durable Gorilla Glass. You can view battery life, support level, speed, heart rate, and more. Plus, it seamlessly connects to your phone through the Bosch eBikeConnect app to share ride data, GPS map routes, altitude, cadence, and power output.
Smart Wheel Size
The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.
Dropper post
Use the remote lever to lower your saddle so it's out of your way when you're descending and cornering.
Integrated speed sensor
You've got one less detail to sweat with the integrated speed sensor. The chainstay-mounted sensor stays protected while the custom hub-mounted magnet stays secure – no more error codes from mis-aligned sensors.
| Frame | Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, internal routing, Motor Armour, magnesium rocker link, rack and mudguard mount, ABP, Boost148, 100 mm travel |
|---|---|
| *Fork |
Size:
XS , S SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm bolt-on thru axle, 100 mm travel |
|
Size:
M , L , XL SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm bolt-on thru axle, 120 mm travel |
|
| Shock | SR Suntour Edge R, 190 mm x 45 mm |
| Max compatible fork travel | 120mm (XS and S: 520mm axle-to-crown, M and up: 545mm axle-to-crown) |
| Hub front | Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
|---|---|
| Hub rear | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| *Rim |
Size:
XS , S Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve |
|
Size:
M , L , XL Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve |
|
| *Tyre |
Size:
XS , S Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 27.5x2.40" |
|
Size:
XS , S Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.35" |
|
|
Size:
M , L , XL Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 29x2.40" |
|
| Max tyre size | Frame: 29x2.40" (XS & S: 27.5x2.60"), Fork: See manufacturer |
| Battery | Bosch PowerTube, 625 Wh |
|---|---|
| Charger | Bosch compact 2A, 100–240V |
| Controller | Bosch Kiox with Anti-theft solution |
| Computer | Bosch Kiox with Anti-theft solution |
| Motor | Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 25 km/h max assist |
| Shifter | Shimano Deore M4100, 10 speed |
|---|---|
| Rear derailleur | Shimano Deore M5120, long cage |
| Crank | FSA Bosch CK-220, 36T ring, 165 mm 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: 46T, min 34T |
| Saddle | Bontrager Commuter Comp |
|---|---|
| *Seatpost |
Size:
XS , S , M TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length |
|
Size:
L , XL TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length |
|
| Handlebar | Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width |
| *Grips |
Size:
XS , S , M , L , XL Bontrager XR Endurance Comp |
|
Size:
XS , S , M , L , XL Bontrager XR Endurance Comp, lock-on |
|
| *Stem |
Size:
XS , S Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length |
|
Size:
M , L , XL Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length |
|
| Head set | FSA IS-2 |
| Brake rotor | Tektro, 6-bolt, 203 mm |
| Brake Set | Tektro HD-M275 hydraulic disc |
| *Light |
Size:
XS , S , M , L , XL Supernova E3 Mini-2 rear light, LED |
|---|---|
|
Size:
XS , S , M , L , XL Herrmans H-Black MR8-E, 180 Lumen, 60 Lux, LED, headlight |
|
| Kickstand | Pletscher Comp Flex 18 |
| Cargo rack | MIK-compatible alloy rear rack |
| *Mudguard |
Size:
XS , S , M , L , XL Trek Powerfly FS custom mudguard |
|
Size:
XS , S Trek Powerfly 27.5" custom fender |
|
|
Size:
M , L , XL Trek Powerfly 29" custom fender |
| Weight | M - 27.38 kg/60.37 lb |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |