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PostPosted: July 12th, 2017, 4:50 am 
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Joined: May 9th, 2016, 5:26 pm
Posts: 7
Location: St. Paul, Minn.
I bought an '89 TA with tubeless tires on the front and back.

Both tires lose air; the front tire more quickly than the rear one.

The rims are the stock spoke rims, and so is that the reason the tires lose air?

I mean the holes through the rims to accommodate the spokes can't be air tight, right?

Can someone confirm that my reasoning is correct? (Or tell me that I'm completely off base ...)

Thanks.


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PostPosted: July 12th, 2017, 6:33 am 
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Joined: July 14th, 2014, 4:55 pm
Posts: 390
Location: California USA
There are ways to make a spoke wheel work with tubeless tires, but I haven,'t had much success with any of them except for using Tubliss (Brand Name) inserts at about $100 each. Most people use a sealant like 3M Marine Sealant 5200 around the spoke nipples, but that tends to fill the rim valley and makes it difficult to change tires.

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89 Transalp XL600V X3, 01 Goldwing GL1800, 99 Varadero XL1000V
05 CRF450X Plated, 01 XR650L, 84 Passport C70


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PostPosted: July 12th, 2017, 2:34 pm 
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Joined: June 12th, 2016, 2:38 am
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Location: Tauranga, NZ
Just put the tubes in! The rims are not made tubeless. Bike tyres do loose air more than e.g. car tyres, but it shouldn't be more than a few knots a week.

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PostPosted: July 12th, 2017, 9:58 pm 
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Joined: July 8th, 2011, 7:02 am
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Location: Mackay, Queensland, Australia
What neppi said, it's much easier. And some tubes seem to "bleed" air quicker than others.

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PostPosted: July 13th, 2017, 4:55 am 
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Joined: May 9th, 2016, 5:26 pm
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Location: St. Paul, Minn.
Thanks, all.

I don't actually know whether the tires have tubes in them or not. Both tires say tubeless on them, but maybe the previous owner put tubes in them. Or used one of the products/techniques mentioned by Skyliner.

I'll try to contact him and find out. Seems that that would be a good first step to take before I take the tires off.


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PostPosted: July 13th, 2017, 7:36 am 
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Joined: July 14th, 2014, 4:55 pm
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Location: California USA
It should be easy to tell if you have tubes or not. If the valve stem is threaded all the way down to the rim then you probably have tubes unless you have a Tubliss system then you will have 2 valve stems per wheel. Or if there is a nut at the bottom of the stem and you loosen it almost all the way up and push the stem into the wheel it will come back up if there is a tube attached to it.

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89 Transalp XL600V X3, 01 Goldwing GL1800, 99 Varadero XL1000V
05 CRF450X Plated, 01 XR650L, 84 Passport C70


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PostPosted: September 7th, 2017, 9:07 am 
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Joined: May 9th, 2016, 5:26 pm
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Location: St. Paul, Minn.
Sorry for the late reply.

I will do the tests Skyliner has mentioned, because I'd really like to know what's inside these tires.


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PostPosted: September 8th, 2017, 1:19 am 
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Joined: September 22nd, 2013, 2:23 pm
Posts: 158
Location: ireland
an incorrectly fitted valve core can cause a tube or tyre to lose air . I had a car tyre place leave a valve core loose . I had to use my valve tool to tighten it up properly no problems after that .


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