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Originally Posted by BrianG
I have a CRT.5 as well and absolutely LOVE the way it drives! However, since the selection of hardened pinions to use is limited at the moment, I was stuck using a hardened 16T pinion and that was geared too high. So, it's on a shelf right now also awaiting a plastic spur.
A 12 or 13T pinion should work well on either of those motors, assuming the stock Mod1 pitch.
If using the 4600, I would use 3s if it's available. If using the 5700, 2s should be fine.
Being so small, the CRT.5 is an easier conversion and can use less expensive components.
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Thats kinda why I want to build this one first.
As for the Mod1 pinions, which bore do I need for the Mamba motors? 1/8th, 4mm, or 5mm?
Thanks :027: