Solid Tire Performance

Pete,

Were they all on the East Ferry Road cal course. I cant remember if it has been resurfaced. Could that have caused the jump in 2005 due to a rougher surface?

Are you wobbling more as the years go by? I am sure I am.

Has Disley ridden miles on his bike and worn the tyre tread?

Just some of the effects that could be the right magnitude to account for the changes

Pete,

I use a bike with solid tires. After seeing your post, I went back and pulled all my cals form one course. I also tracked the temp., and recorded the date of the measurement.

What I found was that over time (the course of 9 months, putting about 1000 miles on the bike over that period), my counts increased. I surmise that it could be due to wear of the tire, decreasing the circumference. I also noted that with higher temps, my counts went up, likely due to slightly softer rubber, effectively shrinking the circumference. However, total variance went from 18396 clicks per mile in the beginning (new tire) to 18414 clicks in the fall.

The variance in any month was less than 3 clicks per mile.

I like solid, as I don't worry about air loss, or worse, a flat during a measurement.

My 2-cents.