About 2 years ago I bought an Ebikeling 36V 550W front 700c kit with the LED display. I paired it with a 36V 12A LifeP04 battery pack. I was surprised by the quality of a low priced kit, and the install was easy.

At about 1500 miles I blew a mosfet in the standard controller. The battery has a high peak rate, so rather than replace the mosfet I bought a 30A 48V controller which has worked out fine. As noted, PAS level 1 can be a bit aggressive, so I usually turn it off in crowed places like parks.

Their prices are good, they are easy to work with, and overall, I am pleased with the package.