I rode a zero gravity clamp on my district alu-1's and it was perfect
Half knucks are good but seem to be a little problematic if you don't do maintainance on them.
I'm from Aussie, not sure where to get them (lucky part n zero gravity etc). BTW how do u know the size of clamp diameter, how can u figure out? Because Im most likely order online.
i have owned many of theres clamps and they all seemed to strip out on the inside of the treads for just normal use, i striped 2 brand new district clamps in one day with not even cranking on them!