mw3230 wrote: issue is not the spending of a few pennies, but the safety of yourself and other road users. You are the same as a car driver who drives with bald tyres.
If you were to skid into me or mine I would be most unimpressed with your penny pinching or your ability to eke out a tyre well beyond reaonableness.
I've no issue with spending pennies maintaining a bike, other than on the town bike. In fact during 2008/2009, a combination of five years high mileage and worn out components, led to a maintenance bill on parts alone of £1657.27, spread over three bikes (Everything was knackered, hubs,sti's, ergo levers etc,etc, etc)
But it is easy to slip into replacing parts, merely for the sake of replacing parts, on a "just in case", "keeping the bike tidy" basis. And on a town bike, which does individual journeys of minute length and is left ready to be pinched on every other street corner, I'm happy to keep it running on older and shabbier looking tyres and even happier that it would appear other cyclists are to
And if I'm to gain a similarity with a motorist running on bald tyres, I'd have to "up" my game considerably. Even including those motorists running on treaded tyres, they manage to injure approx. 498 and kill 8 people daily. Not sure if I'll ever match those figures while on my bike (Though I did get a duckling in 2003/04

)