[Whaler]

I had no plans......I made it to fit my rollbar's OD
The clamps....Basically used pipe with an ID close to my rollbars OD. From 2 pipe sections, I cut both in half and made them to clamp the od of my rollbar. But make it clamp just slightly shy.
The actual cross piece is simple squarestock to whatever length you need. I think I have seen them with roundstock too.

The four spots ( 8 pieces) where the bolts run thru is simply larger 1" or 3/4" bolts cut off to 3/4 inch lengths then drilled out 3/8" for the bolt to pass thru. The shank portion of a large bolt without the threads closest to the bolt head.
Each clamp will get 2 of these guys at each side.

Tack it all together, then bolt it together as seen in photo, then weld it solid. I had a friend TIG the whole thing.

My rollbar wasn't std. 2 inch od....slightly larger. So buying the one from Enzo for the 2 inch bar wasn't an option either.

Pretty easy to build.

The eyebolts and fasteners are SS...polished too

Tim