boat weighjt - suspension

[sweenman1]

Hi,
I have an avon 620 with a mercury 115 Efi engine. Any idea how much this would weigh? I'd guess about 1000kg.

boat 366kg
Batteries 30kg
New engine 180kg (Mercury EFI 115)
Aux Engine 25kg (old Johnson 4.5 seagull)
Aframe + boxes 12kg (estimated - will measure)
Fuel + tanks 130kg (Estimated, 150l )
Console 100kg (inc electronics and steering)
50kg seats 2 single jockey and 1 bench seat
Anchor locker 15kg (will measure to check)
Anchor + wraps 10kg
cover 5 kilo

The suspension is shot on the single wheel braked trailer and I'll need to buy new suspension. Any idea what the rating should be: there's 1300kg units and 1500 units. Price difference isn't significant so should you just go big? Any advice would be appreciated.

Thanks

[Searider]

Are there any markings on your existing units?
Or what is the trailer plated to carry / gross weight.

Going bigger than necessary will make the ride for the boat harder than needed.
So, big enough, but not too big!

[colcreate]

Don't forget the tyre ratings, it will cost you a lot more for tyres that can cope with a minimum of 750kg. If you don't need the extra capacity stick with 1300kg unit and the lower cost 675kg tyres.

[Landlockedpirate]

Sorry, dont know the weight of your boat, but your figure looks about right at 1000kg.

If you then add the weight of the trailer at around 3-350kg you are immediately over the 1300kg axles. The 1500kg seem a better match.

[sweenman1]

I'll check to see if there's any clearer markings on the trailer next time i get to the boat.

There was a bradley plate stating the coupling 1400S70. does this mean the trailer is rated for 1400kg?
The tyres were 165/80R13 83T

Still not exactly sure if 1300kg suspension or 1500kg best. Maybe the 1500 allows the full load capacity of the trailer if this is 1400kg.

thanks for the advice so far.

[Landlockedpirate]

Bradley coupling is rated upto 1400kgs, this isnt the load rating for the trailer, it will be on a seperate plate, usually on the drawbar.

Tyres are only rated for 487kgs each giving a total of 974kg, given that the trailer will weigh 300kg ish, they are very under rated for your rig.

Looks like you will need to change the tyres and the suspension. With a 1400kg hitch,I would guess tha trailer should be plated at 1300kg. I'm not convinced the trailer will be legal for your rib and engine combination.

[Ovey]

I've gone into detail in another thread but I have a Ribeye 600 with Yammy 115, and similar kit to yours (although only one anchor in mine at the time) - it all came in at 1220kg including the trailer on a weighbridge.

My trailer was rated at 1100kg and by the time I looked at uprating the suspension, wheels/tyres, coupling, etc plus adding in mooring fees while the boat was off the trailer to allow me to do the work (over a number of weekends due to other commitments) I just bit the bullet and part-ex'd my trailer for a new 1800kg rated one!

It could be seen as the idiotic thing to do, but for me it was right. It now also gives me scope to add extra anchors, kit and camping gear without worrying.