SpeedFun Furious Evo on/off lights for Askoll Ultra C90A

What does this Tuning Kit do?

The function of the Furious Evo tuning device for Askoll Ultra C90A is to electronically manipulate the rotation speed of the rear wheel and to communicate to the motor a speed that is always lower than 25 KmH in order to obtain a very high real speed with the motor active. The maximum speed limit will therefore be dictated by the power of the motor added to the power expressed by one’s legs.
When the tuning device is active, since it has no communication with the display, it will show halved data on the display starting from a certain threshold.

How does the SpeedFun work?

The tuning kit manipulates the speed signal without altering the motor's power relative to pedaling speed. This guarantees a smooth motor control without speed limit interruptions. Depending on a tuning kit, some determine when assistance stops, while others remove the restriction entirely for continuous support. However, the achievable speed mostly depends on the eBike model. Achievable speed can be calculated using a simple formula:

Speed = Cadence [rpm] * Wheel circumference [mm] * Front Chainring Teeth / Rear Chainring Teeth * 60 [min/h] / 1.000.000 [mm/km]

After installation, your tuning kit will be activated with the activation of your eBike. This tuning kit can be activated / deactivated also, but only by your choice, you do not need to do it everytime you turn on ebike.

IMPORTANT Activation and deactivation:
The Furious Evo tuning device for Askoll Ultra C90A can be activated/deactivated by simply pressing the ebike light button. If the ebike already has the lights connected to the light output, or if it is not possible to use it, it will still be possible to activate/deactivate the tuning with a very practical system (for more information, see the instructions).

Is this the right tuning kit for my e-bike?

It can be installed on ebikes with Askoll Ultra C90A motors, mostly installed on Focarini ebikes and many others, regardless of the type of display or side control of the ebike.

Compatible with:
- Askoll Ultra C90A only

How to Install this tuning kit?

When connecting the SpeedFun chip to an eBike you will find connectors colored to make installation very simple. We have prepared detailed instructions and videos to make installation easy for you. Disassembly of our tuning chip is just as easy. If you have any troubles with installation or disassembly, do not hesitate to contact us.
Installation guide PDF

Important legal note!

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use SpeedFun products. Electric bikes equipped with SpeedFun products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with SpeedFun products can be used exclusively on private property and entirely at one’s own risk.

The use of SpeedFun may void the warranty of your ebike. We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.