i have a fixie lowrider that has the 144 spokes and there isnt even a mm of room left on the rim for another hole..Im pretty sure 144 is the max # of spokes on 20" wheels..if you got hubs that had a higher flange you could probably almost double the # of spokes for a 700c tho..cuz the hubs on the 20" wheels are drilled to hell too, theres no room left on them..you should totally try and show me pictures! it would be the heaviest wheel of all time..unless of course you had like a solid steel disk wheel or something hehe