I bought these so that I can use any 12mm tire on my Tamiya TA-05. They fit perfectly and are slightly wider than the stock pieces. This allows for slightly wider wheelbase, improving handling and balance. Also, these are much more durable than the stock pieces and can take the higher cornering loads that a faster motor and stickier tires can throw at it. These make a great replacement for the stock pieces. I highly recommend them.
I bought these to replace my worn out plastic tamiya ones. It is so nice to have something that is solid like this. You can really tighten the wheel nut and not worry about it breaking. With brushless they hold up really well. Certainly one of the better Yeah Racing alloy products. They are slightly heavier then the plastic things, but the extra strength is a worthwhile tradeoff. BUY THEM!!
Nice hop-up / replacement part for stock wheel adapterds. I'm using them on my Axial AX10 racer and they are holding up very well! it's good test, the stock ones (hpi) broke. I'm using them now on my M03 also as a hop-up.
The finishing is very good, so no complaints. Good parts for good money, i recommend them!