| http://www.w3.org/ns/prov#value | - that gear is called a spur gear, and no metal spur gears are a bad idea for them. they are plastic so that part fails if there is a problem and to save the rest of the driveline. you could look at allaboutfunhobbies or send an email or pm himotoracingusa. he might be able to help you out as well.
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