Originally Posted by malthouse
These are the same ones I do, except mine have diamond encrusted tyres for extra grip on slimey slipways.
Seriously though, they are ideal for the bigger SIBs and the XL draw bar is just right for the 4.3m.
I have one with an XXXXL draw bar that spans two time zones, which I am hoping may suit the 5.3m version.
Having just got mine setup for the 4.1 rib , it really needs some support for the bow . I tried a roller but it lifts the bow a little high and the hull doesn't sit flat on the bunks .
I ended up lowering the rear mountings for the bunks one hole and wrapped some carpet around the drawbar where it bolts to the mainframe .
I reckon a 5.3 sib would go on there ok as the V on the rib is a good 12- 18" deeper than a sib.
I have the bunks set in the forward position and there is still about 4 inches of bunk clear behind the transom which is level with the end of the trailer . The winch post would go forward another 10" or so .