Richard,
The upper strut is 5/8 inch o.d.
The lower strut is 1/2 inch o.d.
Do you have your wheels yet? If not pm me as I have an extra set of 10 spoke from
Equinox RC Scale Products. (
www.mnbigbirds.com )
They have Spokes on one side and are solid on the other.. One could mount (fake) brakes easily there. IMHO..
Otherwise they are similar to AeroTech's 4 7/8" Diameter
1.50" Thickness - .250 Bronze Axel Bushing
These are not the foam ones and not diamond tread which are for the 5 1/2 and 6 inch dia sizes.
Cheers