Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices
Today’s Deals2023 Trek
Powerfly FS 4 Gen 3
A 29″ aluminum frame full suspension crosscountry e-bike with upper mid-range components.
Manufacturer Price
$4,749| Weight | 54.3 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 100 / 100mm |
| Fork | Suntour XCR Air |
| Shock | Suntour |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 10 |
| Groupset | Deore |
| Motor | Bosch 600W 85Nm mid-drive |
| Battery | Bosch 500Wh |
| Brakes | Tektro Hydraulic Disc |
| Seatpost | Dropper |
5'4" – 5'11"
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
Sep 2022 · Mike Hunger
We have tested the Trek Powerfly FS 9 Equipped with Bosch Performance Line CX motor and 625 Wh battery for you.
Wide range of applications
Sporty and stylish look
Intuitive handling
Bosch SmartphoneHub ensures good connectivity
None
Feb 2022 · Russell Burton
A well-specified, comfortable and versatile ebike, but at a serious price
Comfort
Range
Stability
Expensive, especially if you’re considering leaving it outside the local shop
Sep 2021 · Rudolf Fischer
In our E-trekking bike group test, Trek enter the race with the Powerfly FS 9 Equipped with its Bosch Performance CX motor and many sporty features.
Wide range of applications
Predictable handling
Spec includes high-quality mountain bike components
Many connectivity features through Bosch SmartphoneHub
Untidy cable routing of the cockpitt
Oct 2020
Price: $5999.00 | Model Year: 2021 | A premium
A premium "do anything" full suspension electric bike that's equipped to handle pavement, trails, light mountain terrain, rain, shine, day, or night conditions. Available in five frame sizes for optimal fit, the XS and S come with 27.5" wheels and the M, L, and XL come with 29" wheels. Sold through one of North America's largest network of dealers. Trek and Bosch provide excellent support and warranty.
Custom made extra-wide plastic fenders are durable and quiet, very capable in off-road conditions. A sleek and sturdy rear rack provides 25kg (55lbs) of cargo capacity with pannier hangers on both sides and a removable top platform for trunk bags. Puncture resistant tires also feature unique black reflective stripes that combine safety with aesthetics.
Downtube-integrated battery pack and mid-drive motor keep weight low and center. Trek designed a "RIB" battery casing includes a handle for safe removal and transport. The battery doesn't rattle, and it can be charged on or off the bike with the fast 4 amp charger. Peformance Line CX motor is the most powerful from Bosch, but lightweight with a magnesium casing.
Highly adjustable air suspension front and rear with 120mm and 100mm travel respectively. Boost hub spacing and thru-axles increase wheel strength. Extra large 203mm hydraulic disc brakes with heat sinks and alloy cores deliver incredible stopping power. The biggest trade-offs here include the high price, smartphone display (that some may not like), louder motor operation, and increased weight (due to the high capacity battery and accessories).
Sep 2020 · Tyler Benedict
The 2021 Trek Powerfly full suspension e-MTBs blend European sensibility with modern trail capability for a unique e-mountain bike option.
| Frame | Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, internal routing, Motor Armour, rocker link, rack and mudguard mount, ABP, Boost148, 100 mm travel BB Standard: Bosch, Press Fit Tire Clearance: 2.4" Color: Matte Black /Gloss Black |
|---|---|
| Fork | SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 41mm offset, oversized crown for eMTB, Boost110, 15mm bolt-on thru axle, 100mm travel - 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; 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 Travel: 100mm Spring Type: Air |
| Shock | SR Suntour Edge R, 190 mm x 45 mm Travel: 100mm |
| Bottom Bracket | Bosch, press-fit |
| Headset | FSA IS-2 |
| Stem | Bontrager Blendr Stem, 31.8x60 mm, 7-Degree Rise, Black - S : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length; M , L , XL : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length |
| Handlebar | Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
| Seatpost | TransX 100mm Dropper Post, 31.6mm, internal routing, 361mm Length, 80mm Min Insertion, 2-bolt cradle, TRANZX part number YSP-18PLQ - S , M : TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length; L , XL : TranzX JD-YSP18, 130 mm travel, internal routing, 31.6 mm, 425 mm length Type: Dropper |
| Pedals | VP-536 nylon platform |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Rear Derailleur | Shimano Deore M5120, long cage |
|---|---|
| Crank | FSA Bosch CK-220, 36T ring, 165 mm length |
| Shifters | Shimano Deore M4100, 10 speed |
| Cassette | Shimano Deore M4100, 11-46, 10-speed |
| Chain | KMC X10, 10-speed |
| Brakes | Tektro HD-M275 hydraulic disc Type: Tektro Hydraulic Disc |
| Rims | Alex MD35, tubeless compatible, 32-hole, 35 mm width, Presta valve |
|---|---|
| Spokes | 14 g stainless steel, black |
| Front Hub | Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
| Rear Hub | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle |
| Tires | Bontrager Tire XR3 Comp 27.5x2.35 - S : Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.35"; M , L , XL : Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.30" |
| Disc Rotors | Tektro, 6-bolt, 203 mm |
| Motor | Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm |
|---|---|
| Battery | Bosch PowerTube 500 Wh, smart system |
| Remote | Bosch Intuvia 100, smart system |
| Display | Bosch LED remote, smart system |
| Charger | Bosch standard 4A, 230V, smart system |
| Fenders | Trek Powerfly 29" custom fender |
|---|
First added March 25
Last updated May 23
Not listed for 21 days