Opened the garage door yesterday to find my back tyre was flat! Found a big screw stuck in the centre of the tread.
Rather than repair the tube I want to replace it with a new tube and keep the old one for an emergency spare.

Trouble is I've searched on here but can't find what size tube is fitted to the back wheel, can anybody tell me please?

I know it's 17" but what section is it?

Barry.

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