Originally Posted by Jamie James

Just got my SC10 wired up. I am running a 10.5 and going by the manual I should use the 87T spur with a 24T pinion. I only have a 25T pinion until I can get a 24T tomorrow but figure a few laps up and down my street couldn't hurt.

So I get the spur on but there is no way the pinion will fit. Is there a different motor plate or something? Even if it was a 24T pinion, there is nowhere near enough room for the 24/87 combo.