650c tires vs 26"

Dave,
Due to the weirdness that COVID put on the open market, you may find a lot of changes to what you can or cannot buy for your trusty Corsa.
 
Back to your question...I still run the 650c tires on my Corsa.  I have been using Continental Gator Skins and like the performance and the ride.  OTOH, I stocked up on tires a two years ago and still have new ones in my shop.  I don't know what is available at this time in the 650c market.
 
I did convert a 650c RANS XStream to 26 (559) a few years back for a friend.  He wanted a perceived larger tire selection of tires.  On my XStream, I run 26 inch wheels...but as you can guess, I'm running Gator Skins on that also.
 
So, to wrap this up, in today's market, I'd look at the availability of 650c tires and see if you can find what you want.  I think I'd stay at 650c for the  time being unless you have something else driving your decision. 
 
Steve
Bentrider28

bentrider28
Dave,
Due to the weirdness that COVID put on the open market, you may find a lot of changes to what you can or cannot buy for your trusty Corsa.
 
Back to your question...I still run the 650c tires on my Corsa.  I have been using Continental Gator Skins and like the performance and the ride.  OTOH, I stocked up on tires a two years ago and still have new ones in my shop.  I don't know what is available at this time in the 650c market.
 
I did convert a 650c RANS XStream to 26 (559) a few years back for a friend.  He wanted a perceived larger tire selection of tires.  On my XStream, I run 26 inch wheels...but as you can guess, I'm running Gator Skins on that also.
 
So, to wrap this up, in today's market, I'd look at the availability of 650c tires and see if you can find what you want.  I think I'd stay at 650c for the  time being unless you have something else driving your decision. 
 
Steve
Bentrider28

Thanks, it sounds like I should stick with 650c. At some point a 700c Corsa or carbon aero sounds like a plan.

Many years ago I switched from from Gatorskins to the then, Schwalbe Ultremo, and was stunned by the lower rolling resistance and increased speed they offered. While the Ultremos have gone by the by, I think the Schwalbe One would probably be the quicker tire. Maybe you ride in goathead country, and the extra protection of the Gatorskin would be a good idea.
 
Paul
Corsa 07'