xxxs & Reedy 19t Quad Mag: What Pinion?

[Kev Cooke]

I am going to stick my Reedy 19t Quad Mag motor (the one with the flame design on it) into my XXXS, however i don't know which pinion to use. Please advise

I'll be racing indoors on carpet and apart from an initially short straight the track is pretty twisty, the Spur i'll be using is the standard yellow one basically because it's the only Spur i have (88 teeth i think)

[LisaKeen]

will you be running foams or rubbers?

With a 17 on a quite an open track with foams around the 63-65mm diameter ill run about a 24 pinions with a 90 sprure, but on a tight track perhaps to a 23 or 22 with your 88 spure. If you running rubbers which ones as they very a bit in diameter, and this will alter the gearing you need.

Now I know you running a 19, I never have but as I understand them you will probable get away with the same gearing as they have been developed a bit more, as thery are a national class and have been run in the states for quite a while, and they can be dam quick.