When i sit down on the saddle and when/if sort of bottom the shock out, I look at the rear tire part on the ground and it seems like a ton of weight is being applied to the bottom area. It like gets really wide and sometimes the tire looks like its gunno pop right off the rim. Im 230lb's, which prolly adds a huge factor. So could it the tire or tube ever happen to burst a little? Would a thicker tube help?