I figured it's old but maybe someone has a lead. I don't mind what size - the dimensions I need are not size specific and am pretty sure the sizing is adjusted in the front triangle whereby the swingarm does not change nor really the pivots and seat tube angles but my guess is the top tube...
Looking for a Tomac 204 Magnum frame, any condition.
Or, if you have one of these frames or bikes, 2nd option is to get someone to provide a dimension between 2 pivot points. Willing to pay for someone to document the dimension in a .jpg or two.