If your looking at a Chinese chassis this kit will eliminate the electronic issues associated with them from the start. It will convert the chassis to a Gecko Drive G540, 48v 8.3a power supply, and 300oz in 2.4mh inductance motors all in one package with solderless motor connectors, and 10ft cables.

These controller systems feature active industrial cooling solution, and 1.5mm thick aluminum chassis. Turnkey at a price that's cheaper than assembling it yourself with the same components. When reviewing this listing take your time, and read the details of what your getting, and start comparing other vendors. This is the most complete package offered.

http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MESE:IT

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