Tyred out

I spent the morning cleaning the Triumph after yesterdays adventures , and was about to call it a day, when my very good friend Jeff turned up. He wanted to know if I could fit a new rear tyre for him on his bicycle , and to give it a check over.   Jeff puts some incredible  mileage on his cycles ,and they are usually worn out after two years, and they need many new parts fitted.  Sometimes it's cheaper to buy a new bike.