When you say "technically it's one size too small," what do you mean? How is it too small? Are you going only by the 45 vs 48 designation? The geometry is close enough that I think you could make it work, unless you have some unusual fit needs. The advantages of going with a 45 would be 650c wheels, smaller (more aero) bike, easier to mount/dismount, and (for the moment) great prices on used race wheels.
I'm just someone who is small and likes bikes--not a fitter or a pro. I can help you brainstorm how to make it fit. If you want, pm me or post your stack, reach and inseam. I can also eyeball on my P3 45 what would be needed to make it fit for you.
You might find this thread comparing geometry of "old" vs "new" P3 helpful: http://forum.slowtwitch.com/..._my_old_P2_P5030025/[/url]
No coasting in running and no crying in baseball
I'm just someone who is small and likes bikes--not a fitter or a pro. I can help you brainstorm how to make it fit. If you want, pm me or post your stack, reach and inseam. I can also eyeball on my P3 45 what would be needed to make it fit for you.
You might find this thread comparing geometry of "old" vs "new" P3 helpful: http://forum.slowtwitch.com/..._my_old_P2_P5030025/[/url]
No coasting in running and no crying in baseball