Rear tone wheel Vespa 300 E4 / E5 Polini

Rear tone wheel for Vespa 300 E4 / E5 Polini.

The Polini tone wheel for the Vespa GTS 300 maxi-scooter range is designed to modify the rear wheel speed reading, making it possible to raise the stock electronic rev limiter and promote an increase in top speed of approximately up to 10 km/h.

This speed sensor calibration component for Vespa 300 4-Stroke helps correct the speedometer offset, allowing a real and more accurate speed reading to be displayed directly on the vehicle's dashboard. Its installation is direct and compatible with the original setup, although after fitting the new sensor, the ASR traction control system will require a standard recalibration process to ensure the correct alignment of the factory parameters.

Technical features

• Manufacturer reference: 290.0300
• Origin: 100% Made in Italy
• Main function: Modification of the speed sensor reading to shift the rev limiter.
• System compatibility: ASR system recalibration required after installation.

Compatible models

VESPA

• 300 4-Stroke GTS HPE E5 2021-2024 (MD31M)
• 300 4-Stroke GTS, GTV E4 2017-2020 (MA33M)
• 300 4-Stroke GTS, SUPER HPE E4 2019-2020 (M4A36M)
• 300 GTS-SUPER HPE E5 2021-2024 (MD31M)