i just got back from the track where i was attempting a big step down, and slamming very hard. i got back to the truck and saw a small crack on the left, top side of my swingarm, right under the chain slider where the swingarm is carved out for the slider... on the top! its the weakest part of the swingarm since there is less material there. its small, but there is No Way i will go try that jump again. no matter if its welded, replaced or whatever. i do NOT trust my bike on big jumps anymore. what should i do? is it time for a 450? obviously i am pushing this bike too hard and the entire (heavy ) rolling chassis is suspect now. whats next? cracked frame, linkage... it feels like the bike is gonna come apart. and it scares the hell out of me.