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Tubed to Tubeless Tyres

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red leader one View Drop Down
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    Posted: 20 Sep 2016 at 20:47
For the past ten years we have travelled up to Strathpeffer to a cottage, and from there we travel around Scotland for a fortnight, on one of the trips coming home my wife had a rear wheel puncture, which completely wrecked the tyre and inner tube, it wasn't very pleasant to say the least, so I realised then how dangerous tube tyres can be as you get no warning before the tyre goes dead flat, so I decided to do something about the situation.

We decided to get new wheels built with aluminium rims and new hubs, because the Triumph wheels weigh a ton, so this I what I did to make them tubeless .

I cleaned the inside of the rim and stuck silver tape right around the rim on top of the spokes, I then gave it two coats of Hammerite paint, and finally put a coating of Stikflix which is a combination of no nails and silicone, it's used in the building trade extensively, it needs a couple of days to completely go off.  Since then we have covered approx 20,000 miles each and have  had several sets of tyres fitted to both bikes, there is no signs of any deteriation, and the tyres never loose any air.  Since I've done mine there have been lots of others who have copied the system, although I don't claim to be the inventor of it.

Has anyone ever heard of this being done.
The bikes were Bonnevilles.
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2016 at 00:17
On greg Benders site there is a topic which deals with this idea.I can't remember the exact procedure but it sounds similar to this.....
http://www.thisoldtractor.com/moto_guzzi_loopframe_tires_-_tubeless_conversion.html

Edited by Dave P. - 21 Sep 2016 at 00:25

TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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jmee54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jmee54 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2016 at 09:45
I have read articles on this before and thought about doing it. My Eldo tyres have always lost air at a rate that I find unacceptable. Do you by any chance have pictures of the process, as I would like to give it a go. Do you still use the same tyres?
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2016 at 09:57
Lots of pictures on Greg's site John.
I imagine you would use tubeless tyres,I think that's the point of the exercise.

TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote saultrader Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2016 at 10:14
I like the idea and would seriously consider the mod but I always thought that spokes jumped up and down, microscopically speaking, and also wonder about the messiness of replacing a broken spoke. Does anyone do this job professionally?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2016 at 11:47
Apparently the Honda VFR1200X Crosstourer has tubeless spoked spoked wheels.

http://www.honda.co.uk/motorcycles/range/adventure/vfr1200x-2016/specifications.html
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Post Options Post Options   Thanks (0) Thanks(0)   Quote v7john Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2016 at 20:58
I've heard of other people having good results with this but, I've never considered doing it myself as I can't see explaining the modification to my insurers going particularly well.
1972 V7Sport "The Racing Rhino".
1972 V7 700cc "The Fire Bike".

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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2016 at 00:33
I wondered about that as well.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jmee54 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2016 at 12:58
Ok, you do it and it your tyre deflates. I would have thought it would be more controlled than a tubed tyre having a major mishap, wouldn't it and probably noticed before you use your bike?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote theone&onlymin Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2016 at 13:18
See John's link below....

Cheers
Min

Edited by theone&onlymin - 23 Sep 2016 at 10:08
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Post Options Post Options   Thanks (0) Thanks(0)   Quote v7john Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2016 at 19:56
I would choose tubeless tyres in preference to tubed if the choice were straight-forward.

I know of two people who have successfully sealed their spoked wheels. They have neglected to tell their insurers though and that's their choice. They are also aware that the profile of rims for tubed and tubeless tyres are different and taken that into account. I've also seen conversations on the web about going tubeless on some cast wheels which weren't designed for them (Le Mans?) with dire and probably overblown warnings.

I have never heard of anyone coming to grief after converting their wheels, only it not working at the first attempt. That would suggest that the risk in making the modification is low and, given the safety benefits of tubeless tyres, the gains higher. Despite all that, I know my insurers would want to be told and also know they would be difficult.
1972 V7Sport "The Racing Rhino".
1972 V7 700cc "The Fire Bike".

Read my blog https://racingrhino.wordpress.com/
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Post Options Post Options   Thanks (0) Thanks(0)   Quote v7john Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2016 at 20:10
Originally posted by theone&onlymin theone&onlymin wrote:

https://adventure-motorcycling.com/2012/02/14/converting-spoked-rims-for-tubeless-tyres/

Cheers
Min

I don't know why your link doesn't seem to work. It looks right to me
https://adventure-motorcycling.com/2012/02/14/converting-spoked-rims-for-tubeless-tyres/
Interesting stuff.
1972 V7Sport "The Racing Rhino".
1972 V7 700cc "The Fire Bike".

Read my blog https://racingrhino.wordpress.com/
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Post Options Post Options   Thanks (0) Thanks(0)   Quote italianmotor Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2016 at 08:53
I just don't really see what the point of all that effort is on an old Guzzi though. I do understand the principle that a tube deflates quicker than a tubeless setup, but in my experience, and perhaps I have been lucky, the only puncture I have had was 20 years ago and it was pretty slow, and I noticed after a while and pulled over. On an adventure bike riding adventurous terrain or similar fair enough. And as John says, I can't see that the insurers would be happy with me messing about with the tubes/tyrees. And I'm happy enough to take the time (1 minute?) to check the pressures every time I ride, as I can also have a check of the state of the tyres.
Guzzi lover doing my own thing: http://www.italianmotormagazine.com
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BobV7 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2016 at 10:04
The problem I have with tyres is checking the gauges are accurate. Over the years I aquired several of the pencil type, all of which when tested gave different readings. I've also had a couple of digital models which worked well on the car but were less useful with the bike because of problems with fitting the on the valve. Finally I bought a dial model with a flexible hose. This worked well up to the point where it wouldn't hold the reading which rendered it useless. I've just ordered another dial type without the hose connector. Still don't know how accurately these things are calibrated and does it really matter that much?

Sorry to hijack your post RLO! My position on using tubless tyres on rims made to take tubes is I wouldn't do it. I've always understood that the interior rim profiles are different because of the need to make an air tight seal.
V7 Classic Black and gold is the best colour
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jmee54 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2016 at 11:04
I use a 90 deg. valve stem adaptor as I find impossible to get guages on, but it's a pain to keep it with you when you ride different bikes.



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