Powerfly FS and Powerfly FAQ
The motor mounting interfaces have been updated to accommodate the Bosch smart system Performance Line CX motor. See service manual for details. All other awesome features like RIB, Smart Wheel Size, and 85Nm of torque remain.
No. Powerfly’s comfortable geometry doesn’t leave enough room for the very long 750wh battery.
All sizes of Powerfly FS have a very slight curve in the top tube for excellent standover clearance.
The XS and S Powerfly hardtail has a curved top tube.
Powerfly FS does not have Mino Link.
Powerfly FS and Powerfly do not have Knock Block.
Sizes XS & S: 27.5x2.60” with or without a fender.
Sizes M and up: 29x2.40” with fender. The frame will fit a 2.6” tire without a fender, but we recommend always using the fender to keep the shock clean and protected from debris.
No.
Size XS & S: 27.5x2.6”
Sizes M and up: 29x2.6” or 27.5x2.8”
No.
For the rear brake: 180mm direct mount. Maximum 203mm.
For the front brake: please refer to the fork manufacturer.
XS: 183mm
S: 215mm
M: 221mm
L: 249mm
XL: 300mm
XS: 173mm
S: 203mm
M: 218mm
L: 270mm
XL: 321mm
We don’t recommend changing chainrings, as it will affect speed, other data readings, and motor behavior.
Size XS and S: 520mm axle-to-crown or 120mm travel
Size M and up: 545mm axle-to-crown, or 120mm travel
Size XS: 492mm axle-to-crown
Size S: 509mm axle-to-crown
Sizes M and up: 526mm axle-to-crown
Powerfly FS uses custom shocks that allow frame and tire clearance. We do not recommend any aftermarket shocks for this platform.
No.
No.
Yes! You can mount all of these items, and some models even come with them! See Service Manual or Bontrager Rack, Fender, and Kickstand Guide for details.
Yes!
Bosch smart system FAQs
No. The new smart system motor, battery, charger, display, and remote will not work with previous generation components.
Range depends on many factors, but on average, the range will be 3-5 hours. To calculate an approximate range based on factors such as rider weight or terrain check out Bosch’s handy range calculator here:
Bosch range calculatorYes. Spare keys are available through the lock manufacturer, ABUS. They’ll need the key code printed on a card that’s included with the bike. The key code is also stored in the remote and can be accessed by an authorized retailer in the Diagnostic Tool 3, or by the rider using the eBike Flow app.
No.
It does have a pre-installed wire for a headlight. See frame diagram for exact location and routing.
The compact and lightweight 4A Charger takes about five hours to fully charge the battery, and just over two hours for a 50% charge. Previous generation Bosch chargers are not compatible with the new smart system batteries.
There will be multiple firmware updates per year. Updates on bug fixes and improvements in system efficiencies cannot be reverted. Some updates on feature changes are reversible, for instance, riders have the ability to revert from having eMTB mode back to the standard four support modes.
Yes! The Bosch eBike Flow app gives both iOS and Android users access to numerous functions, integrates other apps such as Apple Health and synchronizes activity data automatically. The Flow app can now easily receive updates 'over the air' keeping your bike and app always up-to-date and with the latest features.
No. Get on, start pedaling and the smart activity tracking of the eBike Flow app is activated — regardless of whether the smartphone is in your pocket or attached to the handlebars. Thanks to the in-pocket feature, you can keep your cockpit reduced to the essentials.
Yes. The eBike Flow app can recognize your Rail bike, customize the app display and help you find local Trek retailers. In addition, there will be additional features unique to Trek in the future. Your over-the-air app updates will include these features.
Yes. The eBike Flow app offers user-defined assist modes. Support-percent and support dynamic can be adjusted, while speed and max torque can be reduced (useful where speeds are restricted or with new riders that need to build experience at lower speeds/torque).
No. The new Bosch smart system will do updates “over the air.” The new Rail with Bosch smart system is regularly upgraded with new functions and always remains up-to-date – thanks to updates via the eBike Flow app.
The DiagnosticTool 3 enables trained Bosch retailers to quickly read out and rectify error messages. In addition, using a detailed maintenance log from the DiagnosticTool 3, cyclists can be provided with a detailed eBike diagnostic report for a comprehensive overview of the service performed.
There is an update to the diagnostic tool, and no physical dongle connection necessary.
We tested both and found the wired sensor to be more robust, reliable, and better suited to how riders will use Powerfly.
Technically it fits, but only without the Motor Armour removed, which is why we don't recommend it.