Once again! my tests rely SRM’s measurement on the
Since I switched to the <1% certified model! I
believe the tests are even more accurate. This is proven recently by the incredible
measurement achieved at 0.1 watts ready on a roller on an inner tube test. For
the same speed! 6 min @242.4 watts achieved 2x!
Let’s stop questioning
the sensor in the tests! the SRMs are beasts to get less
than a watt of difference in the yields especially when we can SRM’s measurement record every 0.5 s.
The tests were carried out on my test climb of the country email list Salbert (read the protocol to SRM’s measurement SRM’s measurement understand the rest). The first test on the train at 260 watts gave exactly
the same result for both pairs. I obtained
for both the same difference between the SRM watts and the theoretical calculation
for a 12-minute climb.
Test summary
The following test around 320/330w average where I perform 14 repetitions of 30s@370w /
15s@200 w also gives a similar result. The speed constantly evolves between
20 and 30 km/H but this does not allow to http error 404 and how to fix or customize it on your website? show that the light pair wins! it
is even behind! It is possible that the few passages
with flat part of the climb where the tubulars are used penalize this pair…
Speed variations in blue and power in yellow on the 14×30/15
The study done by Adrien Gontier (RAR) on the costs in watts to go from 0 SRM’s measurement to 30 km/h between the pairs of
wheels confirms the test. On his table we see that between a zipp 202 and a
corima with 400g difference! there is only 1.2 watts saved! I am not ready to
detect anything on the final result with relaunches between 20 and 30
km/h even done 14x!
The cost in watts on the right column
To conclude! the prototype pair easily passes this test because with the be numbers same efficiency as the light pair! we will therefore only lose 400 g
on the climbing weight. 400 g on a 6% climb is barely 1.5 watts to
compensate. On the other hand! on rolling terrain and from 30 km/h! it is a safe bet that the aero profile quickly saves watts compared to the light pair in V profile. Speed will also be easier
to maintain with a little rotating mass this time!
Finally! we can note that the tests were done with a new frame. My last article on aero gains made me want to try it (30 days possible with Canyon). In addition to being aero I can confirm the speed gain with the latter on bumps… my Canyon Ultimate CF SLX is completely dropped by the aero even at 20 km/h! I will come back to it soon.