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Shimano EP8 Tuning Kit PearTune 3.0 E-MTB E-Bike derestrict
This Tuning kit is compatible with Shimano EP8 motors
with and without Di2. Does not work with Shimano EP801.
Important! If You have Giant Revolt E+, you should choose the according option. Giant Revolt E+ EP8 motor runs a different software compared to other EP8 motors.
Compatible with Shimano EP8 motors
Unlock the full potential of your ebike!
- You will ride faster and experience the thrills of owning a derestricted ebike -you will love the difference!
- Install it effortlessly- quick plug-and-play connection - no setup required.
- Feel safe for your e-bike and warranty- it's safe for ebike and undetectable to keep your warranty safe!
Quick plug-and-play installation. No setup!
- Increase the speed limiter from original 16 mph (25km/h) to 31mph (50 km/h)
- Enjoy it always ON or enable/disable when needed!
- Get after-sales support from us and a 2 year warranty from Peartune!
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
Product details
What does this Tuning Kit do?
This Peartune tuning kit removes the 16mph (25km/h) speed limit, allowing the motor to help you at higher speeds. For these Shimano bikes, the speed limit is raised to 31mph (50km/h).
Real speed will be displayed up to 14-15mph (22-25km/h), at higher speeds the bike will show incorrect, slower than real speeds.
How does Peaturne 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]
The tuning kit can be activated directly on your bike’s display. After pressing the 'LIGHT' button, from now on you will be able to ride at a speed of 25 mph (40 km/h) and even up to 31 mph (50 km/h)!
To deactivate the tuning kit, press the 'LIGHT' button again. Your e-bike will then work the same as before installation of the chip.
If the Light button is not activated on your ebike, do not connect red cable, and tuning kit will be activated when you will turn on the ebike.
Is this Peartune the right tuning kit for my bike?
This Peartune tuning kit is made to fit all Shimano EP8 motors, with all Shimano displays made for EP8 motors. Does not work with Shimano EP801
How to install this tuning kit?
Installation Guide
https://cdn.shopify.com/s/files/1/0051/1515/0434/files/MANUAL_-_Shimano_Panasonic_Bafang_UART_EN.pdf?v=1671527612
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 of Peartune products. Electric bikes equipped with Peartune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with Peartune products can be used exclusively on private property and entirely at one’s own risk. The use of Peartune products may void the warranty of your ebike.
We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.
Peartune products are thoroughly tested and we stand by their quality - Peartune provides 2 years warranty to all their products.
To deactivate the tuning kit, press the 'LIGHT' button again. Your e-bike will then work the same as before installation of the chip.
If the Light button is not activated on your ebike, do not connect red cable, and tuning kit will be activated when you will turn on the ebike.
Is this Peartune the right tuning kit for my bike?
This Peartune tuning kit is made to fit all Shimano EP8 motors, with all Shimano displays made for EP8 motors. Does not work with Shimano EP801
Works with the Giant Revolt E+ Di2 powered by Shimano EP8 (mind product options)
Not Compatible with Shimano E8000 / E7000 / E5000. You would need Peatune for Shimano E8000 / E7000 / E5000. Not Compatible with Shimano EP801. You would need PearTune 3.0 for Shimano EP801/EP6
How to install this tuning kit?
The MSO can be activated or deactivated anytime using the bike menu's light control function. Refer to the bike manual for detailed instructions. If the lights are ON, PearTune MSO is OFF. When the lights are OFF, PearTune MSO is ON. If you disconnect the red power cable, PearTune MSO will be "always ON," meaning it will activate automatically when you switch on your bike. If you have any troubles with installation or disassembly, do not hesitate to contact us.
If you are planning to install PearTune on a brand-new bike, make sure you ride it for at least 0.6 miles (1 km) before the tuning kit is activated.
Installation Guide
https://cdn.shopify.com/s/files/1/0051/1515/0434/files/MANUAL_-_Shimano_Panasonic_Bafang_UART_EN.pdf?v=1671527612
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 of Peartune products. Electric bikes equipped with Peartune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with Peartune products can be used exclusively on private property and entirely at one’s own risk. The use of Peartune products may void the warranty of your ebike.
We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.
Peartune products are thoroughly tested and we stand by their quality - Peartune provides 2 years warranty to all their products.