RE: SHUTTLE AND EVO BELTS
I just compared my Shuttle ZX belt with the Sceadu Evo 50 belt and they are totally different. The Sceadu evo 30 is virtually the same as the 50 although the boom lengths may differ.( not sure without looking at a parts break down.) The ZX has larger teeth spaced farther apart vs the Evo that has fine teeth close together.