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It's right for you if...
You want to boost your mountain biking capabilities with a high-end pedal-assist system. You plan to hit the trail often, and want an upgraded parts spec that'll help you push your limits.
The tech you get
A durable aluminium frame that fully encases a long-range 625 Wh battery, a powerful Bosch Performance CX (250 Wh, 85 Nm) motor that helps you sustain speeds of up to 25 km/h and a Kiox controller. Plus, a RockShox Gold RL 120 mm suspension fork, 100mm of rear travel with a RockShox SIDLuxe Select+ shock, powerful 4-piston hydraulic brakes, Bontrager Line Comp 30 wheels, a 12-speed Shimano drive train and a dropper post.
The final word
This full suspension e-MTB is a blast to ride. It has upgraded suspension, brakes, wheels and more that can help you reach new destinations on the trail.
favorite_borderWhy you'll love it
- For e-MTB, full suspension is a game-changer: it soaks up rugged terrain, so you can ride the Bosch pedal-assist system to its full potential
- The dropper post lets you lower your saddle on the fly so it's out of the way on descents
- Wide Line Comp 30 wheels provide more tyre support for better traction and control, and they come completely tubeless to save weight and prevent flats
- The full-colour Kiox controller displays ride info, connects with your Bluetooth-enabled devices and has a built-in theft prevention feature
- Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools and lets you mount a water bottle cage – even on full suspension e-MTBs
'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! '
Read more
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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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.
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.
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 more
Bosch 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.
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.
Lighting ready
The bike is already internally wired to accept additional lights. Go to your dealer and simply have them attached to the bike and plug them in.
Specifications
*spec applies to all sizes unless otherwise noted
| 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 RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm Maxle Stealth, 100 mm travel |
|
Size:
M , L , XL RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm Maxle Stealth, 120 mm travel |
|
| Shock | RockShox SID Lux Select+, 190 x 45 mm |
| Max compatible fork travel | 120mm (XS & S: 520mm axle-to-crown, M & up: 545mm axle-to-crown) |
| Wheel front | Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle |
|---|---|
| Wheel rear | Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
| *Hub rear |
Size:
XS , S , M , L , XL Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
|
Size:
XS , S , M , L , XL Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
|
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| *Rim |
Size:
XS , S , M , L , XL Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|
Size:
XS , S , M , L , XL Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve |
|
| Spokes | DT Swiss Champion, J-Bend, Black |
| Max tyre size | Frame: 29x2.40" (XS & S: 27.5x2.60") Fork: See manufacturer |
| Shifter | Shimano SLX M7100, 12-speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| Crank | E*thirteen E*spec Plus, 34T, 165 mm length |
| Cassette | Shimano SLX M7100, 10-51, 12-speed |
| Chain | Shimano SLX M7100, 12-speed |
| Pedal | VP-536 nylon platform |
| Max. chainring size | Max: 46T, Min 34T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *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, 750 mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem |
Size:
XS , S Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length |
|
Size:
M , L , XL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
|
| Brake | Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper |
| *Brake rotor |
Size:
XS , S , M , L , XL Shimano RT66, 6-bolt, 203 mm |
|
Size:
XS , S , M , L , XL SRAM CenterLine, 6-bolt, round edge, 200 mm |
| Battery | Bosch PowerTube 625 |
|---|---|
| Charger | Bosch standard 4A, 220–240V |
| Controller | Bosch Kiox with Anti-theft solution |
| Motor | Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 25 km/h (15.5 mph) max assist, 32 km/h for New Zealand |
| Weight | M - 24.37 kg / 53.73 lbs (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
Sizing & Tech
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
Rider Height
Inseam
XS
137.0 - 155.0 cm
4'5.9" - 5'1.0"
64.0 - 73.0 cm
25.2" - 28.7"
S
153.0 - 166.5 cm
5'0.2" - 5'5.6"
72.0 - 79.0 cm
28.3" - 31.1"
M
161.0 - 175.0 cm
5'3.4" - 5'8.9"
76.0 - 82.0 cm
29.9" - 32.3"
L
174.0 - 188.0 cm
5'8.5" - 6'2.0"
82.0 - 88.0 cm
32.3" - 34.6"
XL
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
All measurements provided in cm unless otherwise stated.
| Frame size number | Frame size letter | Wheel size | A — Seat tube | B — Seat tube angle | Effective seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14.5 | XS | 27.5" | 36.8 | 68.3° | 76.0° | 14.0 | 66.5° | 55.4 | 33.2 | 2.4 | 46.8 | 4.4 | 10.7 | 117.0 | 69.1 | 40.5 | 59.9 |
| 15.5 | S | 27.5" | 39.5 | 68.3° | 76.0° | 14.0 | 66.5° | 56.4 | 33.2 | 2.4 | 46.8 | 4.4 | 10.7 | 118.0 | 69.1 | 41.5 | 59.9 |
| 17.5 | M | 29" | 42.0 | 67.5° | 76.0° | 13.0 | 66.5° | 58.9 | 33.5 | 3.9 | 47.0 | 4.4 | 11.4 | 120.6 | 71.2 | 43.0 | 63.7 |
| 19.5 | L | 29" | 45.0 | 67.5° | 76.0° | 14.0 | 66.5° | 62.1 | 33.5 | 3.9 | 47.0 | 4.4 | 11.4 | 124.0 | 71.6 | 46.0 | 64.6 |
| 21.5 | XL | 29" | 50.0 | 67.5° | 76.0° | 14.0 | 66.5° | 64.6 | 33.5 | 3.9 | 47.0 | 4.4 | 11.4 | 126.5 | 71.3 | 48.5 | 64.6 |