Only had to cut a 10x5cm notch out on a plastic guard to make it fit. So update. The mic works great also, everyone on the call can hear him. If I were to need to fit a wider hub or larger tire the TS-2EXT. Good product nice and bright I bought these for my husband for fathers Day and he loves them ! If you are seriously looking for a good quality sound output with some decent bass, then this speaker is not the one to consider. Anyway great slippers! has an led light to show also, which is kind of cool. I have started putting shoes on it from the bottom up.