Well, you guys got me thinking about the fit of my bike so when I got home from work I placed my single beside my double
and took this picture:
To be honest, I was shocked by the difference in handlebar heights. The seat heights are identical, the bottom bracket is an inch or so lower on the single. But the handlebars are at least five inches higher on the Speedster. I find the C'dale to be somewhat aggressively positioned but not too much. More importantly, I find the C'dale comfortable. Mel asked me what the height of my handlebars are on my comfortable bike and used my Surly commuter as a reference. However, I think the Speedster geometry is closer to the C'dale than the Surly.
So, I think as time goes on I will probably lose at least two of the five spacers using the same stem.
Aren't bikes fun!?
-Dave