u/stew_on_his_phone

My wheels are 700C. I used to fit 25mm tyres. I've just gone up to 32.

I used the same inner tubes when i fitted the 32 tyres.

Those tubes are 700C 25/28. All my spares are also this size.

Now I read that I risk punctures and faster air leak through the rubber.

I know inner tubes aren't expensive but it burns my arse that the 5 or 6 I have hanging about are no use.

What do you think, how real us the risk of 25/28 inners on 32 tyres?