Reason I'm thinking of trying is 3 of the last 4 pro 2 64p 9t pinions I purchased have the hole for motor shaft slightly off so you can see it when slowly turning it.
Alloy pinions are a solid choice IMHO. Hmm.. The Pro2 PN Delrin pinions are usually excellent.. Very surprised you're seeing bad tolerances.
The PN 7075 S3 alloy pinions are A++. Hard coated, slippery, precise.
@ 64p, an alloy pinion should work great with deleon spur gears. Hope this helps
Oh and contact PN racing about the Pro2 Delrin pinions you found to be off. If they're bad PN will replace them. PN Racing are Good People and will make it right
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