Type 1 and Type 2 firmware are legal for the USA, North America. These modes are not permitted for use in the EU. Please check your local eBike regulations.
Type 1 Firmware - The motor will assist up to 20mph. The motor will only operate when the pedals are turning.
Type 2 Firmware - The motor will assist up to 20mph. The motor will operate even when the pedals are not turning – using the boost button or twist switch.