Trek Powerfly FS+ 6 Gen 4 Bike (2025)

Powerfly FS+ 6 Gen 4 electric bike, 2025 season, in white. Trek reference: 5329737

The Powerfly FS+ 6 is a dual-suspension electric mountain bike that has been developed to explore beyond the beaten path. It features 130mm of travel up front and 120mm at the rear, a powerful Bosch Performance Line CX motor, and a Removable Integrated Battery 2.0 (RIB 2.0) compatible with a PowerMore 2.0 battery for long miles.

TECHNICAL SPECS

FRAMESET

• Frame: Alpha Platinum Aluminum, RIB 2.0 removable integrated battery, Mino Link adjustable geometry, 34.9mm seatpost, 120mm of travel, ABP, UDH, rack and fender mounts
• Fork: Fox AWL Rail HD, Rail 2.0 damper, 130mm of travel, 15x110 thru axle mm
• Shock: Fox Float Rhythm, 2-position damping, 210x50 mm
  
  

WHEELS

• Wheels: Bontrager Line TLR 30, Tubeless Ready (28 or 32 holes depending on size)
• Hubs: Shimano TC500 aluminum, centerlock, 15x110 mm axle. / 12x148 mm rear.
• Spokes: 14G stainless steel, black
• Tires:
  Size S: Bontrager Gunnisson Pro XR 27.5x2.40”
  Size M/L/XL: Bontrager Gunnisson Pro XR 29x2.40”
• Sealant: Bontrager TLR, 6 oz
  
  

ELECTRICAL SYSTEM

• Engine: Bosch Performance Line CX, max. 32 km/h (25 km/h in EU/APAC)
• Battery: Bosch PowerTube 800 Wh, intelligent system
• Charger: Bosch 4A, 230V
• Display: Bosch Purion 200
  
  

TRANSMISSION AND BRAKES

• Shifters: Shimano SLX M7100, 12 speeds
• Rear derailleur: Shimano XT M8100
• Crankset: E*thirteen E*spec Plus, 160 mm
• Cassette: Shimano Deore M6100, 10-51, 12 speed
• Chain: Shimano Deore M6100, 12 speeds
• Pedals: VP-536 nylon platform
• Brakes: Shimano M6100 (lever) / M6120 (caliper), 4 pistons
• Discs: Shimano RT64, 203 mm
• Max. size Disc: Frame: 220mm / Min. 180mm / Fork: As per manufacturer
  
  

COMPONENTS

• Saddle: Bontrager Verse P3, steel rails
• Seatpost:
  Size S: Bontrager Line Dropper, 100mm
  Size M/L/XL: Bontrager Line Dropper, 170mm
• Handlebar: Bontrager Comp, 780mm, 40mm rise, alloy, 31.8mm
• Grips: Bontrager XR Trail Comp with nylon lock-on
• Stem: Bontrager Comp, 50mm, 7-degree, Blendr compatible
• Headset: FSA IS-2, 1-1/8" up 1.5” down
  
  

ACCESSORIES

• Fenders: Trek 27.5” Custom Fenders
  
  

WEIGHT

• Weight (size M): 25.08 kg (55.3 lb, with TLR sealant, tubeless)
• Weight limit: 136 kg (bike + rider + cargo)