Mercury / Dark Web

Pennyflake / Black Olive

Powerfly FS+ 4 is a full-power full suspension electric mountain bike for taking on alpine adventures. Its Alpha Platinum Aluminum frame pairs with a RockShox Deluxe suspension package (120mm rear, 120mm front) to smooth out rough trails, while a 10-speed Shimano CUES drivetrain provides simple, low maintenance shifting. Tektro Gemini SL 4-piston hydraulic disc brakes give you stopping power at a great value.

Trek Powerfly FS+ 4

This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

The Powerfly FS+ 4 is a full-power full suspension electric mountain bike for taking on alpine adventures. Its Alpha Platinum Aluminium frame pairs with a RockShox Deluxe suspension package (120 mm rear, 120 mm front) to smooth out rough trails, while a 10-speed Shimano CUES drivetrain provides simple, low maintenance shifting. Tektro Gemini SL 4-piston hydraulic disc brakes give you stopping power at a great value.

Trek Powerfly FS+ 4 Gen 4

This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

The Powerfly FS+ 4 Equipped is a full-power full suspension electric mountain bike for taking on alpine adventures. Its Alpha Platinum Aluminium frame pairs with a RockShox Deluxe suspension package (120 mm rear, 130 mm front) to smooth out rough trails, while a 10-speed Shimano CUES drivetrain provides simple, low maintenance shifting. Tektro Gemini SL 4-piston hydraulic disc brakes give you stopping power at a great value. Plus, it comes equipped for adventure with lights, mudguards, a MIK-compatible rack and a kickstand.

Trek Powerfly FS+ 4 Equipped Gen 4

Gloss Dark Star / Matte Dark Web

Era White / Buff Beige

The Powerfly FS+ 6 is a full-power full suspension electric mountain bike built to explore beyond the beaten track. Its Alpha Platinum Aluminium frame blends confident geometry with a FOX suspension package (120 mm rear, 130 mm front) to smooth out rough trails. It comes ready to roll with a 12-speed Shimano XT/SLX drivetrain and the serious stopping power of Shimano 4-piston M6100 hydraulic disc brakes.

Trek Powerfly FS+ 6 Gen 4

Matte / Gloss Mulsanne Blue

Gloss Lava / Matte Dark Web

The Powerfly FS+ 8 is a deluxe full-power, full suspension electric mountain bike ready for adventure. Its sturdy Alpha Platinum Aluminium frame partners with a Fox suspension fork and shock (120 mm rear, 130 mm front) to smooth out rough trails, while a 12-speed wireless SRAM GX Eagle AXS transmission keeps shifting ultra-smooth through even the roughest terrain. 4-piston SRAM DB 8 hydraulic disc brakes provide stop-on-a-dime control for loose, wet and steep trails.

	FS+ 4	FS+ 4 Gen 4	FS+ 4 Equipped Gen 4	FS+ 6 Gen 4	FS+ 8 Gen 4
MSRP	$4,899	($5,235)	($5,584)	($6,165)	($7,562)
Spec Level
Weight	54.2 lbs	54.2 lbs	52.5 lbs	55.3 lbs	54.0 lbs
Fork	RockShox Recon Silver RL	RockShox Recon Silver RL	RockShox Recon Silver RL	Fox AWL	Fox Rhythm Float 36
Brakes	Tektro Gemini Hydraulic Disc	Tektro Gemini Hydraulic Disc	Tektro Gemini Hydraulic Disc	Shimano Deore Hydraulic Disc	SRAM DB8 Hydraulic Disc
Motor	Bosch 600W 85Nm mid-drive	Bosch 600W 85Nm mid-drive	Bosch 600W 85Nm mid-drive	Bosch 600W 85Nm mid-drive	Bosch 600W 85Nm mid-drive
Battery	Bosch 600Wh	Bosch 600Wh	Bosch 600Wh	Bosch 800Wh	Bosch 800Wh
Groupset	CUES	CUES	CUES	XT, SLX	Eagle AXS, GX Eagle Transmission
Drivetrain	1 × 10	1 × 10	1 × 10	1 × 12	1 × 12 Electronic


Wheels	27.5″	29″	29″	29″
Stack	597	629	647	666
Reach	425	450	475	500
Stack/Reach Ratio	1.41	1.40	1.36	1.33
Top Tube Length	563	595	630	654
Seat Tube Length	380	400	420	450
Seat Tube Angle	77.0	77.0	77.0	77.0
Head Tube Length	130	110	130	150
Head Tube Angle	65.0	66.0	66.0	66.0
BB Drop	30	45	45	45
BB Height	325	329	329	329
Front Center	745	766	799	832
Chainstay Length	458	461	461	461
Wheelbase	1,201	1,223	1,257	1,290
Rake	49	50	50	50
Trail	123	125	125	125
Standover Height	756	780	775	778