MountainE-bikeVerified spec

2021 Trek Powerfly FS 4 Gen 2

Launched at $4,600

Own a 2021 Trek Powerfly FS 4 Gen 2?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$2,570

$1,660 to $3,097

Like new

$2,442

$1,577 to $2,942

Excellent

$2,313

$1,494 to $2,787

Good

$1,928

$1,245 to $2,323

Fair

$1,414

$913 to $1,703

For parts

$771

$498 to $929

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Fork: SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm bolt-on thru axle, 120mm travel
Stem: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
Tires: Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30"
Brakes: Tektro HD-M275 hydraulic disc, 203mm rotors
Saddle: Bontrager Arvada, steel rails, 138mm width
Wheels: Alex MD35, Tubeless Ready, 32-hole, 35mm width, presta valve
Cassette: Shimano Deore M4100, 11-46, 10 speed
Crankset: FSA Bosch CK-220, 36T ring, 165mm length
Seatpost: TranzX JD-YSP18 dropper, internal routing, 31.6mm
Shifters: Shimano Deore M4100, 10 speed
Handlebar: Bontrager alloy, 31.8mm, 15mm rise
Weight kg: 24.83
Rear shock: SR Suntour Edge R, 190x45mm
Travel rear mm: 100
Rear derailleur: Shimano Deore M5120, long cage
Travel front mm: 120

Motor: Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist
Assist mph: 20
Battery wh: 500

14.5: Reach mm: 405; Stack mm: 599; Chainstay mm: 468; Wheelbase mm: 1170; Head angle deg: 66.5; Seat angle deg: 76
15.5: Reach mm: 415; Stack mm: 599; Chainstay mm: 468; Wheelbase mm: 1180; Head angle deg: 66.5; Seat angle deg: 76
17.5: Reach mm: 430; Stack mm: 637; Chainstay mm: 470; Wheelbase mm: 1206; Head angle deg: 66.5; Seat angle deg: 76
19.5: Reach mm: 460; Stack mm: 646; Chainstay mm: 470; Wheelbase mm: 1240; Head angle deg: 66.5; Seat angle deg: 76
21.5: Reach mm: 485; Stack mm: 646; Chainstay mm: 470; Wheelbase mm: 1265; Head angle deg: 66.5; Seat angle deg: 76

Sold across model years 2021-2022 under one product code. Price as shown on Trek's US site, 2020-09 capture.

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