I cant stress this enough. These sandals were prefect for my five year old daughter. I am going to order my second pair now. No way to adjust. Its handy and out of the way and it works for me. Got it for $102, very nice for this price. -Bracket for tire is 2. I have high arches and I can comfortably walk in these all day! There?s holes in the back to mount it, which I was unaware of. We have brand new radios so I dont think it was the radio and likely was the 2 wire.