I recently went down a tooth in the front, added the shorty pipe and lowered the bike 2's in the rear and 1.5 in the front. My question to you bad ass drag racers is what should I set my rear tire psi at? Im running a bald ass shinko advance 200/50/17. I have to admit,the bike has no traction in first gear on the street what so ever. One thing im worried about though is that a buddy of mine told me to raise the bike back up a little because that if I come out of the hole and the front comes up to high and I have to let off it can knock a hole in my oil pan if I bottom out to hard. Any of yall have this problem? The cat had bottomed out a little already just from the little bit of street riding ive done but not real bad. I just have it lowered like this for tomorrow though so after that I will set it back to stock setting. Im going to try and improve on my previous best 60ft of a crappy 1.95 and consistent 10.70's at 136-139. Thanks for your advice in advance guys.