daaan100 wrote:
I got some calipers onto the latest version last night. Mounted to an old skinny rim Hed Jet 90, which should be similar to the original Hed 3, they came out at circa 21.5mm. Originals were only 20.2mm.
My guess is that the new tyre rolls better largely because it's a wider tyre, but in doing so, scuppers all of us hoping to use it on an older skinny rimmed Hed wheel in terms of aero.
I haven't seen Crr test results for the new SS 20 or 23 tires. The recent SS 20c results that TomA just added to his
Crr spreadsheet was a newer vintage of the previous SS model. It was not the new for 2017 SS tire. If it turns out this new tire is the GP TT without a Vectran breaker it could roll better than the previous 20c SS.
Bummer on the SS 23c is that it could end up mounting at close to 25mm wide. Or about the same as the GP TT 23c.