Trek Released Powerfly+ FS 8 Gen 4 E-Bike
The new electric mountain bike features an 800 Wh battery and a high-torque Bosch motor for off-road trails.
Updated on Oct. 12, 2026 in Electric Vehicles
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Trek has introduced the Powerfly+ FS 8 Gen 4, an electric mountain bike equipped with a 12-speed wireless Shimano XT Di2 drivetrain. The bike is powered by a Bosch Performance Line CX motor that delivers 85 Nm of torque.
Why it matters
The model provides significant versatility for riders by offering both high power for challenging terrain and extended range capabilities. Users can further customize their ride performance through digital integration.
The bike produces 750 W of peak power and features a maximum payload capacity of 136 kg. Riders can tune the motor up to 100 Nm using the Bosch eBike Flow app.
The players
Trek
Trek is a major bicycle manufacturer known for producing a wide range of cycling equipment and high-performance bikes.
Bosch
Bosch is a global engineering and technology company that produces specialized electric drive systems for e-bikes.
Shimano
Shimano is a leading manufacturer of cycling components, including drivetrains and braking systems for mountain bikes.
The details
Constructed with an alpha platinum frame, the mountain bike includes 150 mm of travel via a Fox 36 fork and uses Shimano XT 4-piston hydraulic disc brakes for stopping power. Riders can increase their distance further by adding a 250 Wh PowerMore range extender.
Timeline
The new electric mountain bike was announced on October 12, 2026.
Roadmap
This release reflects the broader industry shift toward increasing torque and battery capacity in full-suspension electric mountain bikes to compete on technical trails. Trek is positioning the Powerfly+ series to remain a central competitor against top-tier off-road e-bike manufacturers.
Buyers can expect the 24.88 kg bike to offer a robust riding experience suited for demanding off-road conditions. Prospective owners should verify current dealership availability and check for compatibility with the optional 250 Wh range extender to maximize their ride time.
The takeaway
Riders seeking high-performance off-road capability benefit from the bike's modular battery design and app-based motor tuning. When planning long-distance rides, remember that utilizing eco mode and range extenders will be essential to achieving the 160 km claimed maximum range.
Further reading
Learn more about the latest innovations in the Electric Vehicles category.
Source note: This article includes information reported by Notebookcheck.
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