Currently riding cruiser bike with an 80cc engine mounted. It rides extremely well but recently I have been having issues with the back tire going flat and legit blowing. Last time this happened the tubing actually came out and go shredded by the back sprocket. The bike is a 26 cruiser as mentioned. I have standard tires on, I dont know the name but they are white-walled if that helps any. The tubing I run is usually just any tubing I get from Walmart, nothing special. I live in the city and I tend to ride far. My average speed on it is quite high usually ranging from 25-30 mphs, so when I am riding where I live I may go over some railroads tracks in the city, I try to avoid pot holes, maybe will run over some broken glass in the street, normal stuff yea know? I am looking for something I know will last and provide peace of mind, any recommendations? Also if this helps lol I am 200lbs so that tire is getting some weight. Thanks guys!