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Old 19 July 2011, 13:49   #1
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Bunked or Rollers??- SIB

Im having 0 look finding a suitable & decent condition second hand trailer so iv been looking at new ones and have a couple of questions.
Does a trailer for a 4metre inflatable need to be bunked to support the tubes? Or is rollers just as good? Trailers with rollers seem to be a bit cheaper than bunked new.
Also is it a bad idea to tow a sib with the engine fitted? If so what exactly happens if you do? Does it cause transom damage or does it damage the pin that holds the outboard in up?
Cheers
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Old 19 July 2011, 14:15   #2
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Cannot help with a trailer but found this topic the other day when searching which might help the second question:

Outboards permanently fitted to SIB's
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Old 19 July 2011, 14:31   #3
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Thanks, just had a read through it now. Once i get hold of a trailer ill just give it a go. If it breaks it breaks, but if it doesnt then the goings good Ill just have to keep an eye on it after each journey.
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Old 19 July 2011, 18:07   #4
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I don't think I have seen a SIB on a roller trailer yet. I would have thought the more focused weight may well damage the Tubes. I'm surprised roller trailers are cheaper than bunk trailers, would have thought the roller would have been more.
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Old 19 July 2011, 18:15   #5
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Bunks are pretty much required for SIBs. I had my outboard permanently attached to my old Bombard, but consider outboard weight and transom robustness on your particular SIB.
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Old 20 July 2011, 03:17   #6
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I was thinking the rollers would be dearer too, but on small trailers its seems sticking two small rollers at the back rather than having bunks is cheaper. Unless they just realise that bunks are neccessary for inflatable so put their prices up. Looks like ill definately be going for a bunked one then, as i also want to leave the engine attached so want as much support as possible.
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Old 20 July 2011, 10:43   #7
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Quote:
Originally Posted by LWman View Post
I was thinking the rollers would be dearer too, but on small trailers its seems sticking two small rollers at the back rather than having bunks is cheaper.
When you're recovering, the back end of the trailer is usually deep enough that the boat doesn't hit there (at least when I recover it is.) Contact is made further up: halfway or even further along towards the front of the trailer. I'd expect that rollers at the back wouldn't do much for you.

jky
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Old 20 July 2011, 14:19   #8
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yeah, i see what you mean. They would be a bit pointless as the boat would be floating above the back of the trailer. Ill definately give rollers a miss and look for a propper inflatable trailer.
Thanks for the replies!
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Old 20 July 2011, 15:08   #9
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Sib trailer

Here is a pic of my old sib. I coulnt find a trailer that i thought was suitable of supporting either the boat or engine properly, so i ended up building my own. See how the "spine" of the trailer extends out behind the boat for the skeg to rest on and be strapped down whilst towing. Just in case you were wondering, it is twin axle only for stability not load capacity as i used 8" wheels.
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Old 20 July 2011, 15:53   #10
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That looks a really handy trailer, it looks to do the job perfectly. Iv thought about building one myself with my dad but i just cant imagine it turning out to be any good and i wouldnt want the hassle of it all. Did the extended "spine" help to protect the transom/ motor mount and did you ever have any problems with the engine being fitted while towing? I may consider doing the same thing/something similar as an addition to whatever trailer i pick up, as i also plan to tow with the engine attached.
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