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Sportster Motorcycle Tires, Wheels, and Brakes Discuss issues with Sportster motorcycle tires, wheels and brakes.

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inner tubes, spoke wheels, tires, tubeless, tubes

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  #1  
Old 11th February 2018
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Question Inner tubes in tubeless tires?

I want to run good tires on my Sporty, which has spoke wheels. The general consensus seems to be that it's fine to run tubes in any tires, some say use baby powder for chafing possibilities others say it's not necessary.

But finding a definitive answer is almost impossible. I've had a tire failure at speed, with a passenger, and it's not fun. I don't want a repeat of that. I want to be safe.

Can I run any of the nice new tires that are meant to be tubeless, with tubes?

Specifically looking at this one for the rear because it has unreal, amazing reviews:
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Old 11th February 2018
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As I understand it, only a 'tubeless' tyre can be run without a tube, but any tyre can be run with a tube. Certainly among crossplies; radials may be a different matter.
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Old 11th February 2018
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I don't know about motorcycle tires, but they make radial tubes for auto tires. I suppose they have radial tubes for bikes.
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Old 11th February 2018
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I think most modern tires are made to be tubeless, but running a tube is no problem. I have to use tubes because I have spoked wheels. Never had a problem.
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Old 11th February 2018
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Quote:
Originally Posted by Skwerly View Post
the nice new tires that are meant to be tubeless
They're not meant to be tubeless; they're capable of being run tubeless.
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Quote:
Originally Posted by Folkie View Post
They're not meant to be tubeless; they're capable of being run tubeless.
Good explanation Folkie. Short, sweet, and to the point.
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Old 11th February 2018
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Ehm
Caution guys
Most is about the rims...
If the rims were designed to wear tubeless tyres... it can be dangerous to insert a tube in there... for an example after a flat... i had seen that happen a few times... once in my own car... after some kms... BANG!

on spoke rims no problem of course... the vast majority of them are designed to run tube tyres... and obviously they do not care if the tyre could even being run tubeless or not...
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Old 12th February 2018
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I was thinking most of the tires I have bought over the last many years stated they could be run with or without a tube in the adds. I didn't feel they could print that kind of hazard if it exists. But, I haven't done any research on it.
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In the Metzeler technical data guide, it's clear that fitting a tube in a tubeless tyre is quite normal:
When installing a tube in a METZELER tubeless tyre, never tighten the valve stem lock nut until the tyre is properly seated and inflated to the proper riding pressure. Whenever you install a tube, be sure not to pinch the tube and remember to dust the tube with talcum powder. Always use a valve cap.
It also says:
Tubeless tyres require a special bead seat, because the beads have to form an airtight seal on the rim. Not all cast wheels, aluminium or magnesium, are suitable for tubeless tyre fitment. Do not mount tyres without tubes, unless the wheel manufacturer recommends it. If a tube is inserted, it is then possible to fit a tubeless tyre to a tubetype rim.
(my bold)

Obviously we're talking about crossplies, but FWIW they have this to say about radial tyres:
The fitment of tubes in radial tyres is possible under certain specific conditions. You will find the correct indications in the operating manual of the motorcycle. It is not recommended to fit a tube in a Radial Tubeless tyre marked 'ZR'.
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Old 12th February 2018
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install doughnuts and forget about it.
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