i hate the toy proxe FZ4. ive gone through 3 tires in the past year. they find every possible way to pop. ran over a pot hole at 5mph. got a nail half wayup the side wall(the nail was parallel with the ground. dont ask me how it happened cause i was going straight). ans got some random chunk of something right in the middle between the tread. they are great but the compound is to soft to prevent punctures.