If you plug the numbers here you can get an idea of the watts saved.AJS914 wrote: ↑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.
Doesn’t seem much, but then again, even the “slowest Tarmac” is quite aero optimised and doesn’t have basic wheels either.
Again, science says Tarmac is just fine.. But one can’t just avoid falling in love for the Venge.
But let’s just say that if people buy it to be considerably faster (or if they claim it after they ride it), I call bs.