Where can one purchase an electric bike kit?

Online retailers: Several online retailers, such as Amazon, eBay, and Alibaba, sell a wide range of electric bike kits.

Bicycle shops: Many bicycle shops carry electric bike kits, providing both installation services and advice on selecting the right kit for your needs. It's best to check with local bike shops about the availability of such kits or if they can order one for you.

Electric bike conversion companies: There are companies that specialize in converting traditional bicycles into electric bicycles. They sell custom-designed kits tailored to specific bike models and often provide installation services for an additional fee. Doing a local search online or asking at some bike workshops could lead you to find such establishments.

When purchasing an electric bike kit, it's important to research and check compatibility with your existing bicycle, motor power/wattage, range (battery capacity), desired features, warranties, and after-sales support offered by the retailer or manufacturer.