03-21-2021, 03:05 AM
Ouch, a little bit complex question, I had to set an Excel sheet for the requested calculations...
Result is 1.4 : about 140000 miles (6 bikes, 50 years), two flats I remember (but maybe there were some others in the '70s). In both cases I discovered the flat when taking the bike out the garage, so I was not too worried. But on the CB1100 I have always, under the seat, a tubeless tire repair kit, with a CO2 bottle, even if I never used it.
Result is 1.4 : about 140000 miles (6 bikes, 50 years), two flats I remember (but maybe there were some others in the '70s). In both cases I discovered the flat when taking the bike out the garage, so I was not too worried. But on the CB1100 I have always, under the seat, a tubeless tire repair kit, with a CO2 bottle, even if I never used it.