I noticed there's some ebike stuff on sale during Amazon Prime Day for today and tomorrow. Hubs, kits, throttles, lipo chargers, etc.
https://www.amazon.com/Ebike-Motor-Electric-Conversion-flywheel/dp/B08D3PNXKP/ref=sr_1_5?dchild=1&keywords=hub+motor&psr=PDAY&qid=1624288788&s=prime-day&sr=1-5
https://www.amazon.com/Ebike-Motor-Electric-Conversion-flywheel/dp/B08D3PNXKP/ref=sr_1_5?dchild=1&keywords=hub+motor&psr=PDAY&qid=1624288788&s=prime-day&sr=1-5