Okay, today when i was riding, i saw a giant curb. Like 1.5feet tall. I decided to bunny hop onto it.My back wheel hit the top of the curb and the tire went flat in 2 seconds. I come home and decided to change the tube. This was the first time that i had to take off the wheel on this bike. The chain on the bike is really tight, too tight to take it off the sprocket or the driver. Is there a way to take the tire off? Or, can someone tell me how to un-link a chain?
Also, i noticed the rim had a little indent on one side. Is there anyway to fix that?