Twin hammers kit build...advice
 

I posted this in the brand section, thought I'd try here as well.

I'm getting ready to start my new build..my first. So far, I've got a 5700kv Castle Creations combo....a savox servo for steering. I don't plan on using a shift servo. I'm wanting a Lil speed and a lil light crawling....I still need a pinion gear...can anybody give me a suggestion? Thanks in advance.

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