Main Product Information
SpeedFun Ribelle is a ebike tuning for Bosch motor that allows you to increase the speed of the ebike by removing the block set at 25 kmH. With SpeedFun Ribelle, active assistance is increased up to 60 km/h
The SpeedFun Ribelle ebike tuning for Bosch always shows real data on the display and can be activated or deactivated by pressing a simple sequence of keys directly from the ebike handlebar control. The activation and deactivation of the device is indicated on the display.
SpeedFun Ribelle for Bosch thanks to its particular operating algorithm comes into operation when 16 km/h is reached without the cyclist noticing any difference in assistance. It does not intervene in any way at low speeds. This important precaution has been implemented to avoid power losses, failures or “hiccup” operations.
SpeedFun Ribelle for Bosch is available in two versions:
– Standard: allows you to unlock the ebike over 25 Km/h leaving the real data on the display.
– Standard plus: same functions as the standard version but more:
Max speed setting: you can set the max speed after which the motor stops to help.
“Anti-theft” function: a sequence of keys can be activated to be entered within 10s of turning on the ebike (each device has its own sequence which is different from all the others). If the sequence is not entered correctly the ebike will turn off and will not assist.
Torque curve modification: it is possible to choose between 3 different pre-set levels that modify the motor response.
Important notice:
COBI display and SmartHub: the Ribelle Plus tuning device is compatible with COBI s SmartHub display but only allows the activation and deactivation of the release, all other features cannot be managed.
“Personalized pedaling/assistance personalization” mode: the Ribelle tuning device (both standard and plus) is not compatible with this feature offered by Bosch on Nyon displays (including the new Nyon 2021).
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:
From any of the assistance modes, press the key sequence: minus , plus , minus, plus.
A battery level animation appears briefly on the display. Battery fill sequence means unlocked speed. Battery drain sequence means locked speed as in original at 25km/h.
This device is compatible with Intuvia, Purion, Nyon (including new Nyon 2021) and Kiox displays and can be installed on Bosch (BES2) motor:
– Gen. 2 (Active, Performance and Performance CX 2014, 2015, 2016, 2017, 2018, 2019 and 2020)
– Gen. 3 (Active Line, Active Line Plus 2018, 2019 and 2020)
– Gen. 4 (Performance CX and Performance Line 2020 and 2021)
SpeedFun Ribelle is a very small device, measuring only 38 x 16.5 x 7.5 mm. It is equipped with original connectors and does not change the characteristics of electrical resistance and water tightness.
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:
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.
Warranty does not cover damage resulting from eBike software updates. Remove the tuning kit before updating the software. Check with us first to ensure the kit is compatible with your updated eBike. We cannot guarantee that the kit will function the same after updates. Please exercise caution.

The bike feels completely different once derestricted - it's just like a whole different bike! The rides are so much more fun now! Tuning kits are safe to your bike and every ebiker should have one installed! You will love riding your ebike with it - guaranteed!
Matt - Owner of Two Wheels Empire
What Our Clients Say About It?
Works amazingly well and the MPH reads reasonably accurately as well as removing the manufacturer restrictions, my only criticism is the user and install instructions could dramatically improve. Overall an amazing well engineered product.
Ottimo prodotto però.....
Il dispositivo sembra funzionare bene peccato che per poter cambiare il suo settaggio bisogna scaricare una applicazione che sembra essere a pagamento. Con quello che costa il prodotto non mi sembra molto corretto.
3rd one I’ve had :(
To be honest I’m not sure about this kit. On the first kit I bought, the magnet wheel disintegrated after about 6 months use. To give them their due, Two-wheel Empire gave me a full replacement kit for half-price. However, the wheel has also disintegrated on the replacement kit after...read more
SpeedBox 3.0 B.Tuning for Specialized Levo SL
Excellent communication with the seller, very knowledgeable, answered all my questions. The Item arrived on time. Well packaged. The unit was easy to fit and set up using the free to download, Speedbox app. A very well made piece of equipment. Overall, an excellent company to deal with. I will...read more