For the test! the rollers were set to resistance 0 to avoid any uncontrolled heating of the friction mechanism. The front of the roller was raised by 3 cm to accentuate the pressure of the weight on
the rear and thus have a higher pressure on the tire to be tested. For the test! I
made sure to always carry the same weight with the bike by GP TT temperature playing with the water bottle
and maintaining 69 kg. The outside temperatures
allowed me to maintain 16 to 17 degrees without exceeding them in the room. The
Emotion roller has the advantage with its oscillating frame! of having a rendering really
close to the road. The tire moves constantly and can work! undergo
deformations and shears while maintaining balance on the bike.
Having Continental
GP4000s 2 23/25 mm and GP TT 23 mm phone number list never on rollers and practically
new! it seemed interesting to me to compare them with the Vittoria by carrying out
the warm-up and running-in protocols for all.
The protocol was therefore as follows: Warm-up!
running-in! 75 rpm (43 km/h) and comparison of the power GP TT temperature consumed for each
tire over 4 min tests in 50×11. The table below shows precisely the impact
of running-in on the tires: between 2 sessions! the TT and GP 23 mm reduced their
consumption by a few watts then! as we will see later! the efficiency hardly changes
with the sequences.
Note that the average cadence was quite repeatable
around 74.7 rpm. For the summary! I made a examples and programs to make a creative brochure small proportional correction of the
watts consumed! to bring all the tests back to 74.7 rpm when the latter were not there
by a few tenths. Thanks to the SRMwin software allowing to process the watts data! cadence to +/- 0.1 and the recording every 0.5 s!
The Corsa Speed would dethrone the GP TT and would consume almost 9
watts less at around 43 km/h on the Roller. It’s quite obvious as soon as you install it!
it rolls all by itself. Unlike the Rubino which generates a really
significant rolling force with 36 watts more! We can also see from be numbers the tire temperature
that the Rubino dissipates watts by heating up to 30 degrees while the other tires remain around 23 degrees at the end of the test.