Ricta 54mm 101A Cores Wheels diameter:54mm and the slightly shorter kingpin

and the slightly shorter kingpin with the flat head doesn't get in your way during Smith and Feeble Grinds

Das Concave

3/8 " socket for the kingpin nut

The Mushroom Picker Socks

Ricta 54mm 101A Cores Wheels diameter:54mm and the slightly shorter kingpinRicta Wheels Team skateboard wheels The Ricta Rapido urethane compound promises durability and speed The Cores Shape is slightly wider with a wider tread for more control at high speeds and longer durability. They are cut flat on the inside, which makes it easier to lock in on grinds The hard plastic core reduces energy loss allowing for longer, faster rolls With 101A hardness, the wheels are hard 54MM diameter