The kit does come with the new light weight 23mm hexes. I used Matrix Buggy 17mm hexes as I have several sets of ST-R and Mugen wheels and they are 17mm.

Note: The kit does not come with a body or wheels... so I figured I'd use the wheels that I had. Killer Hobbies was clearing out their Matrix parts inventory at 45% off so the 17mm hexes and nuts were cheap. Another note... if you go this route you will need to shim up the play between the hub and bearing face. About 1.25mm. Any standard hub/hex setup should work that fits an 8mm axle. CEN uses 3mm pins so HPI and Mugen pins will work as well.

The jury is still out on this for me... I may just end up using the 23's that came with the kit. I just dont like the style of dish wheels. But I think the offset 23mm wheels will be a good choice.

e.