What size trailer?
I have a dilema. My boat (old zodiac 530 Pro) is currently on an old snipe brake back bunk trailer that has a very basic cantilever spring arm suspension. Under my boat the camber on the tyres is excessive and mud flap clearance is minimal. It's un-braked and rated to 750kg. I've decided to replace it as I would prefer a roller trailer and the cost of modifying the current one isn't worth it. At the same time, I'm making some changes to the boat, new engine, consoles, fuel tanks etc and I don't know what it will weigh when finished. I've put some numbers together:-
Boat 250kg (from hull plate, assuming tubes included)
New engine 155kg (Tohatsu TLDI MD90C2, from Tohatsu)
Aux Engine 25kg (old Johnson 4.5 seagull)
Aframe + boxes 12kg (estimated - will measure)
Fuel + tanks 65kg (Estimated, 70+12l in plastic tanks)
Console 30kg (inc electronics and steering)
Anchor locker 15kg (will measure to check)
Anchor + wraps 10kg
Total mass comes out at 577kg. Assuming a trailer mass of 170kg, that gives pretty much 750kg. I will be right on the limit for an unbraked trailer with no spare capacity for other kit.
The dilemma is do I go for the much cheaper unbraked trailer with less maintenance to worry about but probably be a bit over the limit, or go for the additional capacity in case I put anything else on the boat or want to travel with kit in it (we're divers), but have to pay £500 extra for the trailer and then additional servicing?
For what its worth, I'm considering the extreme 1100 super roller at about £1700 and £500 delivery (its a long way from Southampton to Cumbria), or the 750 super roller at about £1100 and £70 delivery (comes in a kit by courier). My boat is on the length limit also for the 750.
Any comments greatly appreciated!