As an example, suppose a 90 kg system weight, 0.4 CdA and flat ground with smooth pavement (so we can use BRR numbers) at 200 watts. Comparing the Bontragers to a G-one RS Pro yields the following:
- 28.4 kph with the Bontragers
- 30.8 kph with the G-one RS’s
Usually these things would be pretty marginal, but those tires are phenomenally slow, as in, the rolling resistance is twice as high as the Schwalbes. Changing the assumptions will move the numbers around a bit but the difference will still be large.
You can play around with the numbers yourself here:
Alternatively, you’d only need to put out 163 watts on the Schwalbes to go the same speed as at 200 watts with the Bontragers. That’s a lot of training hours.