Insane Russian Attack Bike is Powered by a Chainsaw... While it may look like it’s designed for the sole purpose of cutting down everything in its path, the chainsaw’s motor does in fact power the front wheel of the bike. Apparently it’s not an uncommon practice to recycle small motors. If you lack a spare chainsaw, a weed wacker or any other small engine can do the job.
While it may look like it's designed for the sole purpose of threatening to garrote those in ones path, the chainsaw's motor does in fact power this bike.