[Molten]

I have to second the importance of considering the construction of a part when designing it. I know your not to the building stage yet, but its good to keep in mind from the point where you start drafting out the details. I've learned this the hard way. One year I had the welder put our frame together before I had the machinist drill our holes for the shaft. Needless to say, neither was happy with me. If you consider the construction while designing, it saves you from the disheartening changes that completely change your vision at the last second.

Other then that: I like the way it looks. I can't really judge it much more then that because I've never really designed a wheel myself.

PS: Fillets and Chamfers are a draftsmen's best friend. They tend to make everything look better. However, they are also the machinist's enemy. Would you rather befriend the fillet or the machinist? Choose carefully.