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Old 09-14-2009, 06:52 AM   #16
huckleberry
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Good thing you have your saftey chicken chocked on there!!!!! Cool idea hope all works well would love to do this myself but just seems a bit too big to tow for me i would like to find a way to just lift the front wheel of the trials in a rack and let the rear roll would cut down on a lot of weight!
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Old 09-14-2009, 07:36 AM   #17
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Great thread and nice project....I am one of the weirdos out there that would love to be able to pull a trailer with my MC.
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Old 09-14-2009, 08:02 PM   #18
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Update

After initial road tests I moved the axle back as far as the leaf spring hangers would allow.



This really changed the feel and handling, while it was OK initially it is really improved now and feels much more secure, particularly at speeds over 80kph / 50 mph up to a max of 120 kph / 75 mph.
Did some freeway stuff, around big trucks etc, all fine.
Just got to be more careful to remember it is there as it is quite easy to forget now.
The only real bumps that are a little weird feeling are the flowing 'whoop' type bumps, the hard hits are absorbed by both the Trails bike and trailer suspension really well.
But it really is quite easy to tow and gets a lot of funny looks.

To answer your questions Troy...

How long to mount/disassemble it?
I can drop the trailer off the hitch in a couple or minutes, or drop the whole hitch on the ground in less than 5 as there are only 14 x easily accessed M8 Cap screws holding it on.

And... what are the legalities with getting it rego'd etc. Engineer approvals etc?
In Victoria as the Trailer is wider than the towing vehicle it has to be registered, paperwork only, no inspection required and cost less than $40, will be less next year for just the renewal.

ADR covers hitch with all sorts of engineers speak, I figure it is over engineered based on what works and will worry about this if and when and if I need to. If you have no paint to watch dry, you can swat up yourself http://www.infrastructure.gov.au/roa...dr_online.aspx

Insurance fine print does note that a trailer is covered as long as it is made by a specialist trailer company and fit for purpose. The Trailer company I got the Trailer from has supplied and worked with many motorcycle applications so I am using that to suit my interpretation. I'll fight that battle if I need to as well.

THAT would be just the coolest thing to build for the little blokes new KTM SX 50 adventure to go on the back of... I could ride/tow him behind the SE to training or some of the weekend rides... the guys would just FREAK!
Easily doable and lots more fun than Mechano or lego

Could I get a parts list/drawing for the tow hitch... they have small galv. light weight (one) bike trailers on sale here for a song (the ones with the small boat trailer wheels on them)... that off road bike hitch would just be the piece d' resistance!

The entire project was made on the fly, barely a measurement taken, mostly by eye, which is why it may not look staright to your eye... Nothing more than a few rudimentary sketches to work out a few issues on the way.

As it stands now, this trailer, complete with trials bike has 70 kg on each wheel and 20kg on the draw bar which I make to be 160 kg or 350 lb. It is not heavy so does not need a heavy hitch or coupling.

The Trailer itself is just a kitset trailer from China and I believe is sold in the USA in virtually the same form.

Now, see those LC8 wheels with knobbies in the background on the left? The next stage is to mount them on the front of the trailer either side of the Sherco. Slab it to Murray Sunset nartional Park (500 k's) or other designated area and have two bikes to play with, then slab it back... all without killing a fresh set of knobbies.

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Old 09-15-2009, 01:29 AM   #19
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You sir... are a bloody (mad) genius!

(I particularly like the spare SE offroad tyre/wheels on the trailer idea bit )... I think I feel an "ultimate off road motorcycle camper/trailer thread" coming along.

If you did all that by just using eye/rule of thumb engineering... that's a big from me... I guess we can use your photo's as reference points?

Let's see now, a friday night in the shed, a tape measure, angle grinder, makita drill... a rubber chicken and a six pack! What could go wrong...??!!

I do like Seth S' idea of an electric brake set-up though... (quick... someone get me Hayman Reese on the line will ya' ? ).

more electrics eh...? Like I said before... what could go wrong?!
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Old 09-15-2009, 10:28 AM   #20
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I sure hope that works for you...but to me, it's the recipe for doom.

Be safe, my friend.
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Old 09-15-2009, 03:09 PM   #21
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I sure hope that works for you...but to me, it's the recipe for doom.

Be safe, my friend.
Life kills us all eventually, may as well step out of the queue and have some fun mucking about while we wait.



But I must admit to riding it on high alert, with added caution.....
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Old 09-15-2009, 04:59 PM   #22
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Earlier thread about towing a bike; http://www.advrider.com/forums/showthread.php?t=213034

There used to be a guy that towed his Montessa 4RT behind his Goldwing to STRA events. Unfortunatly I can't find the pics anymore.
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Old 09-16-2009, 12:31 AM   #23
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Originally Posted by Autostream

But I must admit to riding it on high alert, with added caution...
Any personal thoughts about the electric brakes thing Auto...? is it necessary...? would it be advantageous...? is it possible...? or filed under "too hard" basket...?

This does have my interest peaking... but I'm not a big fan of being "pushed around from the rear"... if you know what I'm sayin'?
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Old 09-16-2009, 01:19 AM   #24
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Originally Posted by troy safari carpente
Any personal thoughts about the electric brakes thing Auto...? is it necessary...? would it be advantageous...? is it possible...? or filed under "too hard" basket...?
Terry Aust had electric brakes on his BMW 1150 rig, and does say it was an advantage for higher speed cornering etc, but that was an around Australia set up.

I have tried braking reasonably hard from 80 k's and while you know it's there it is not scary. Rest of the time it's fine. I am in no way the slowest vehicle on the road or freeway, but anticipating idiots etc as I would normally being on a bike.

it's like towing a caravan behind a car instead of a 4wd or truck, if you drive within common sense limits it's fine.

At this stage, I do not feel that the set up is lacking in any way and don't feel I need electric brakes or anything.
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Old 09-16-2009, 05:22 AM   #25
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I think for the majority of the time you wouldn`t need trailer brakes Auto.. Its only when you need to brake in a hurry while cornering or in wet conditions that it could turn pear shaped..

Would hate to see you drop it for the sake of an extra few hundred dollars in setup costs..
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Old 09-16-2009, 05:38 AM   #26
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Quote:
Originally Posted by norton73
Earlier thread about towing a bike; http://www.advrider.com/forums/showthread.php?t=213034

There used to be a guy that towed his Montessa 4RT behind his Goldwing to STRA events. Unfortunatly I can't find the pics anymore.
Thanks for that link.
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Old 09-16-2009, 03:57 PM   #27
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I think for the majority of the time you wouldn`t need trailer brakes Auto.. Its only when you need to brake in a hurry while cornering or in wet conditions that it could turn pear shaped..

Would hate to see you drop it for the sake of an extra few hundred dollars in setup costs..
Things go Pear shaped if you brake suddenly in a cormer anyway Nev, having a trailer would just make a bad move worse....
You can avoid more without brakes once in a corner, than you can stop for.
Same applies in wet conditions.

This particular project is very much a fair weather local use project at this point, just to get the bike to the Club Grounds or local forest over summer. If I do actually start to get the inclination to go farther afield I may well add the electric brakes later.

But if you start to search around all the trailer makers in Aus (there are a few), none of the common ones come with brakes and it is not very often mentioned either.

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Old 09-16-2009, 04:24 PM   #28
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Great work, I love it!
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Old 09-16-2009, 05:41 PM   #29
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Quote:
Originally Posted by Autostream
Things go Pear shaped if you brake suddenly in a cormer anyway Nev, having a trailer would just make a bad move worse....
You can avoid more without brakes once in a corner, than you can stop for.
Same applies in wet conditions.

This particular project is very much a fair weather local use project at this point, just to get the bike to the Club Grounds or local forest over summer. If I do actually start to get the inclination to go farther afield I may well add the electric brakes later.

But if you start to search around all the trailer makers in Aus (there are a few), none of the common ones come with brakes and it is not very often mentioned either.
Yes, very true on all points Auto..

Well, now that we have determined that your not fitting electric brakes anytime soon, no need to rush out and fit an electric brake unit to my bike then..






Any chance of borrowing your trailer best buddie, mate, pal??
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Old 09-16-2009, 06:27 PM   #30
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Quote:
Originally Posted by nevgriff64
Yes, very true on all points Auto..

Well, now that we have determined that your not fitting electric brakes anytime soon, no need to rush out and fit an electric brake unit to my bike then..


Any chance of borrowing your trailer best buddie, mate, pal??
Your set up is somewhat different....
If I brake hard the weight and force of the trailer is centered behind my two braking wheels, can feel it squirm a little, but nothing more than braking hard off road.

If you brake hard, you have this lump hanging off the side that wants to turn the bike right, into oncoming traffic.... Add a trailer with 12" of leverage to the mix and rather you than me Bud... I reckon I would be looking at electric brakes on that set up if towing...

.... but I have not ridden it, I don't know what it rides like or what it will tow like. I got to admit, once I got mine set up with the axle further back I was suprised at how light and easily towed it is.

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