Originally Posted by
djbclk430
I am running stock spur 81t and 18 pin with an 8.5t and overheating what should i run with an 8.5t which spur and pin i run on small track tight turns rythem sec and 1 straitway? any help would be appreciated THANKS!
I would also check for binding first. I run a 81/19-20 with no issues. Also are you running it for like 10 minutes?