Hi, i still have the stock rear ballon tires and i was wondering about a few things about getting new ones. First, what kind of tires do you recommend? I also have to take the balance of price and performance into consideration, because I do not want to spend on top notch racing grade tires just for trail riding. Second, should I buy the tires only and use my stock rims or should I buy a rear tire kit with rims... and if that is the best choice then what size rims and tires should I get? Any help would be greatly appretiated. Thanks!