HPI Micro RS4 pinion upgrades? - RCCanada - Canada Radio Controlled Hobby Forum
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Old 02-19-2015, 09:35 PM   #1
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HPI Micro RS4 pinion upgrades?

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So I just got a Micro RS4, and I like it, but the plastic pinion gear keeps sliding off the motor shaft. Are there any metal pinions with a set screw made for 180 sized motors?
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Old 02-20-2015, 05:12 AM   #2
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Re: HPI Micro RS4 pinion upgrades?

You can get 180 size motors with metal pinions on them. How many teeth on your pinion?

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Old 04-07-2015, 06:10 AM   #3
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Re: HPI Micro RS4 pinion upgrades?

think the rs4 is a 48 pitch, a 180 motor would have a 2mm size shaft or the website has a few from hpi http://www.hpiracing.com/en/part/72485
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