Im running 15/45 for the creek so im guessing i need to go longer at Pi by a few teeth minimum. I get 245 at the creek top speed via speedangle.
You'd think so, but not the case. I run the same gearing at PI and EC and it's pretty well perfect. PI straight is shorter than EC but you come on a bit quicker. Ends up as a pretty similar top speed for a 600. I reckon you're good with 15/45
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