Geared front hubmotor kit from ebikeling.com 2018. $221. Delivered to friend near summer camp. 1st defective battery from btrbattery of amazon.com. Bike huffy savanah cruiser from charity resale shop near summer camp, $15. Didn't like 18 lb battery hung off front fork, hated the PAS, too fast level 1. Battery would go until 1st hill then drop voltage. 2nd defective battery from sun-ebike warehouse in Baldwin Hills, CA, ebay, $300. Battery voltage would rebound after quitting on 1st hill, so didn't know if battery was bad or controller+motor. 6 months later tested battery with resistors & DVM, proved it bad.