Finding inner tubes

c-m · World Chat Champion Joined: 12 May 2006 Karma :

For those of you with spoked wheels, where are you getting your inner tubes from?

Since Continental dropped out of the market, I can't find any natural rubber inner tubes anymore.

All that seems to be available is Michelin, which use butyl for their non-heavy duty tubes.

There's nothing from Metzeler, Pirelli, Bridgestone, Heidenau, who are all known to make natural rubber tubes.

Specifically I'm looking for one for a 90/90 21 tyre, 2.15 wheel.

redeem ouzzer · World Chat Champion Joined: 06 Oct 2015 Karma :

c-m · World Chat Champion Joined: 12 May 2006 Karma :

Natural rubber is more pliable, lasts longer, and can lend it self to being used across many different sizes. It's a useful trait when touring, you might only carry a front tube as spare, and it can used in the rear to get you to civilisation.

Fizzer Thou · World Chat Champion Joined: 06 Aug 2011 Karma :

Many off road shops sell inner tubes

https://racespec.co.uk/products/vee-rubber-inner-tubes-heavy-duty

https://www.catalyst-findit.co.uk/index.php?c=d2f5d910014f2842ada1bbc16c273aae&vat=ex&dest=listing&p=8073
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c-m · World Chat Champion Joined: 12 May 2006 Karma :

They do, but they are heavy duty tubes. No good to me. That's an extra kilo of unstrung weight for no real benefit.

Guess I'll just have to get the michelin butyl ones and see how it goes.