electric motorcycle fire

Electric Motorcycle Fire: Was It Battery or BMS Problem--Seeking Explanations

How can we determine if our electric motorcycle had a BMS? We imported 2 electric motorcycles in late 2010. They were ordered with a 5000W motor and 72V90AH LiFePO4 battery packs with a BMS. They were routinely charged and test ridden. One bike had about 500 miles. A few weeks ago, it was ridden 20 miles and parked. Approximately 50 minutes after the ignition was turned off, the bike burst into flames and was demolished. Fire marshall determined no signs of foul play. We trying to determine the cause. We are speculating that the battery pack was NOT LiFePO4. We are also speculating that there was no BMS installed, because we cannot find any circuitry between the + and - terminals. How can we verify if there is a BMS? Is there any other way to determine by examining the other bike? We are looking for answers to this safety issue.

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