Ok, it was all my fault - and I deserve everything I get.
I did just over 8,000km on my Dawes Sonoran last year. But it wasn't
until I started noticing the odd chain skip that I thought I probably
ought to check the chain for wear. It should be noted here that all my
cycling is on dusty back lanes in Breckland, Norfolk (PSF Country) where
the soil is very sandy and abrasive.
Of course, the chain was HUGELY worn - it measured 12.5" on the 12-link
measurement test. So I fitted a new one, and (as expected) it skips ALL
the time now because the cassette is equally knackered.
Now have a new cassette on order, but you can bet the Chainwheel is
probably knack'd too.
I must take more care of my bikes 🙁
--
Chris