Gearing for Dummies. [HELP]
OK I have a HPI Pro 2 and a Losi XXX-S G+. I am wanting to get the final rollout on both of the cars to 112-115. Can anyone help me.
On my XXX-S I am running a 128 64 pitch spur.
On my Pro 2 I am running a 87 48 pitch spur.
I am running rubber tires that are 63mm in diamiter on both cars. I do not know the internal ratios of either car.
I do not want just an answer like run a 28 pinion altough that is also needed. I would like someone to explain how they came to their answer.
Thanks so much for any and all help. I plan to race these cars tomorrow.
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