Originally Posted by Mollers
I'm thinking a 2" mild steel shaped hoop in either orange or grey.
Hmmmm, mild steel: nice! I'm guessing you may have a spare length of scaffold tube in the shed
I wouldn't tow off a single hoop A-frame - it would be too flexy/springy.
IMO, a double 2" tow frame would look too heavy on a SR4 - a 1.5" or 2" ski pole with bracing struts fixed to the attachment points on the deck for the transom braces would be a better option, although it wouldn't be as high as you'd like for wakeboarding.
Oh and don't forget to seal off the flooding hull
Sorry, Tim M, hijacked your thread here.