If you plug the numbers here you can get an idea of the watts saved.AJS914 wrote: â†‘Sat Dec 08, 2018 4:18 pmI've seen that chart from Specialized in the past and my thought was that there is hardly any difference. If I'm reading the chart correctly I see that they are showing 6 bars for each .01 of cda. That comes out to a difference of:
.007 cda (fastest Tarmac compared to Venge)
.013 cda (slowest Tarmac compared to Venge)*
I think this tells us that handlebars and wheels make a decent difference.
For example, at 30kmh (not the usual 45kmh bs), having a CdA of .30 vs .313 (Venge vs slowest Tarmac) seems to yield a saving of around 5 watts.
Doesnâ€™t seem much, but then again, even the â€śslowest Tarmacâ€ť is quite aero optimised and doesnâ€™t have basic wheels either.
Again, science says Tarmac is just fine.. But one canâ€™t just avoid falling in love for the Venge.
But letâ€™s just say that if people buy it to be considerably faster (or if they claim it after they ride it), I call bs.