Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2021 Trek Powerfly FS 9 Equipped
Previous used estimate
$2,541 - $2,614
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Trek Powerfly FS 9 Equipped
12-month projected trend
11%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Trek Powerfly FS 9 Equipped
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Powerfly model years
Overview
About this bike
Powerfly FS 9 EQ is a full suspension electric mountain bike that’s built for singletrack sessions and rugged commutes. You get high-end parts, a powerful drive system, and a rad suspension setup for tackling rougher trails. And, it comes with utility-focused features for daily riding, like fenders, lights, and a rear rack. It's right for you if... You want a super versatile full suspension e-MTB to take out on the trail. You also want it to come equipped with commute-ready accessories so you can bring home the bacon and get a little shreddy on your way back from work. The tech you get A durable aluminum frame that fully encases a long-range 625Wh battery, a powerful Bosch Performance CX (250Wh, 75 Nm) motor that helps you sustain speeds of up to 20 mph or 32 km/h, and a SmartphoneHub controller that can be used with or without your phone. Plus, a RockShox 35 Gold RL 120mm 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 XT drivetrain, and a dropper post for getting low on descents. The final word Our best Powerfly FS rips rough trails, rail trails, and rugged commutes thanks to a plush suspension setup, powerful drive system, and loads of utility features. Why you'll love it - It comes equipped with fenders, a rear trunk rack, and lights that are powered by the battery so you're ready to ride right from the start - Download the COBI.Bike app and your phone becomes an on-board computer. Attach it to SmartphoneHub to charge, make or take calls, listen to music, get turn-by-turn directions, and more - Wide Line Comp 30 wheels provide more tire support so you get better traction and control - 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 - The size S frame features a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits—29" wheels on larger frames, 27.5" wheels on smaller frames Wheel size: Sizes X-Small – Small: 27.5-inch Sizes Medium – X-Large: 29-inch
Specifications
- Subtype
- Electric Mountain
- Category
- E-Bike
- Component Fork
- RockShox 35 Gold RL 120mm
- Component Hubs
- Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110 Rear: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Shimano MicroSpline freehub, Boost148
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Bontrager Elite, 31.8mm, Blendr light mount, 7 degree rise
- Product Family
- Powerfly
- Component Axles
- Front: 110 x 15mm Rear: 148 x 12mm
- Component Chain
- Shimano XT M8100, 12 speed
- Component Color
- Lithium Grey/Trek Black
- Component Frame
- Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Knock Block, internal routing, Motor Armor, magnesium rocker link, rack and fender mount, ABP, Boost148, 100mm travel
- Component Motor
- Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm
- Component Brakes
- Shimano XT M8120 4-piston hydraulic disc
- Component Pedals
- VP-536 nylon platform
- Component Saddle
- Bontrager Commuter Comp, 165mm width
- Component Battery
- Bosch PowerTube 625
- Component Charger
- Bosch standard 4A (100-240V) charger
- Component Display
- Bosch SmartphoneHub
- Component Cassette
- Shimano XT M8100, 10-51, 12 speed
- Component Crankset
- E*thirteen E*spec Plus
- Component Shifters
- Shimano XT M8100, 12 speed
- Component Handlebar
- Bontrager alloy, 31.8mm, 15mm rise
- Component Rear Tire
- Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 2.40"
- Component Seat Post
- Bontrager Line Dropper, internal routing, 31.6mm
- Component Chainrings
- 34T
- Component Front Tire
- Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 2.40"
- Component Rear Shock
- RockShox SIDLuxe Select+, 190x45mm
- Component Tape Grips
- Bontrager XR Endurance Comp, lock-on
- Component Wheel Size
- 27.5-inch, 29-inch
- Component Rims Wheels
- Bontrager Line Comp 30, Tubeless Ready
- Component Brake Levers
- Shimano XT M8120
- Component Rear Derailleur
- Shimano XT M8100, long cage, 51T max cog
- Component Accessories Extras
- Fenders, Supernova Mini 2, 5-21V LED front and Supernova E3 Mini-2 rear lights, LED light, rear rack, Pletscher Comp Flex 18 kickstand, bell
- Component Max Assisted Speed
- 20mph or 32km/h
- Rear Shock
- RockShox SIDLuxe Select+, 190x45mm
- Hubs
- Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110 Rear: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Shimano MicroSpline freehub, Boost148
- Crankset
- E*thirteen E*spec Plus
- Pedals
- VP-536 nylon platform
- Chain
- Shimano XT M8100, 12 speed
- Saddle
- Bontrager Commuter Comp, 165mm width
- Handlebar
- Bontrager alloy, 31.8mm, 15mm rise
- Rear Derailleur
- Shimano XT M8100, long cage, 51T max cog
- Rear Tire
- Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 2.40"
- Stem
- Bontrager Elite, 31.8mm, Blendr light mount, 7 degree rise
- Accessories & Extras
- Fenders, Supernova Mini 2, 5-21V LED front and Supernova E3 Mini-2 rear lights, LED light, rear rack, Pletscher Comp Flex 18 kickstand, bell
- Axles
- Front: 110 x 15mm Rear: 148 x 12mm
- Brake Levers
- Shimano XT M8120
- Brakes
- Shimano XT M8120 4-piston hydraulic disc
- Cassette
- Shimano XT M8100, 10-51, 12 speed
- Chainrings
- 34T
- Display
- Bosch SmartphoneHub
- Fork
- RockShox 35 Gold RL 120mm
- Frame
- Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Knock Block, internal routing, Motor Armor, magnesium rocker link, rack and fender mount, ABP, Boost148, 100mm travel
- Seat Post
- Bontrager Line Dropper, internal routing, 31.6mm
- Shifters
- Shimano XT M8100, 12 speed
- Tape/Grips
- Bontrager XR Endurance Comp, lock-on
- Motor
- Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm
- Max Assisted Speed
- 20mph or 32km/h
- Charger
- Bosch standard 4A (100-240V) charger
- Battery
- Bosch PowerTube 625
- Color
- Lithium Grey/Trek Black
- Size
- X-Large
- Wheel Size
- 29-inch
- Rims/Wheels
- Bontrager Line Comp 30, Tubeless Ready
- Front Tire
- Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 2.40"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Battery health
Request battery cycle count, capacity diagnostics, and motor service records.