W
I bought judnicks brothers mod motor and it runs unbelievable but I didn't know where to start with clutching so the biggest weights I had were 53h almond red primary secondary is red with black stripe with the stock 440 helix, I put 21 top 41 bottom gears in it that he gave me at the same time. I am not sure as to how high this thing is supposed to rev but trying to hold on I have at least seen 8500 from it. I have not really been able to ride it much yet but any help is greatly appreciated especially since i have not found very much info for a mod. I plan on racing hillx with it mostly with a few snox races. Thanks in advance