chainring changes
This might actually be slower - larger chainrings are more efficient.
tpu tubes
Slower than latex.
Don’t forget picking a day with low pressure. Bestbikesplit can help you understand wind/pressure.
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Just got back from Mallorca yesterday. Missing the weather, the island and the riding already. But it’s good to be back home also, spring weather is really picking up here in Oslo, Norway.
I did one attempt at Sa Calobra, and I managed to cut my previous PR with almost a minute. So now my PR is 33:08. Most happy with my power number, as I managed to avarage 311 watts. Had dropped down to about 65 kg’s, and this was on my 5th day of riding. Traffic was picking up and I had to cut a couple of corners and go to the left of buses coming down. Not ideal, but never felt unsafe so I went for it.
It’s been a long long time since I dug that deep for that long. It’s pretty horrible, but feels so good afterwards when you actually manage to set a new PR and see that things are going the roght direction.
Good luck to the ones riding it in the coming weeks!
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35:30 at around 84kg and 320w
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31:13 @351w 74-76kg 4.6-4.7 w/kg.
Very warm (for me) 13th April.
Pleased and not pleased.
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How much optimisation / Aero / wind?
Well I had another crack the other day.
I was off the bike sick for almost an entire month before hand, so didn’t hit my weight goal of 79, did get to 82kg though.
Difficult to gauge power after being sick for so long, AI FTP had me at 245w but I was pretty happy to do 45.07 @257w which is around 3.1W/Kg.
I’m not sure if I was heavy on the day, or wind was playing havoc (MyWindSock reckons it saved me 10 seconds, but it’s impossible to predict around the mountains of Mallorca) but I’m starting to think I’m going to need a lot more than 79kg/270w to reach that goal of <40min.
Next attempt will be late October.
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Your friend is 2 minutes off at 4.66w/kg but you think it needs 0.8w/kg more for another 2 minutes?
Using a calculator at 72kg and 1kg for shoes, helmet, water bottle and assuming 8.5kg bike with everything, you’d need 351w for 19km/h which will take you just under 30m. At 66kg with similar assumptions you’d need 328w. That is 4.88w/kg and 4.97w/kg respectively.
Backtesting on your friend’s results, 317w with 68kg gives 18.09km/h which is 31:19, so fairly close. The lighter rider in my example may need a bit above 5w/kg or just better rolling resistance than your friend on the tyres or a bit more wind from behind, but the slightly heavier one will definitely achieve sub 30 on less than 5w/kg.
Absolutely none. Aero bike. Summer vented helmet. Average speed 18km/h. I had two friends drafting me and they think it made a difference, so aero optimisation might be worth a little. Better to have a pacer for the lower flatter slopes.
Wind, not sure, but it was pretty calm.
What kinds of times do other women target on here? I just did it in 53’ and I was pretty happy with that because I’m not a natural climber. I also had to stop behind a bus for at least a minute.
I stumbled upon this thread, looking for some Sa Calobra datapoints myself.
I did the climb this year, at 61/62kg and 300w (and 54 years young 
), and made it to the top in 31:18. On that day, dropping below 30min was for sure impossible. This was a good effort for me, I may have been able to go 15-20secs faster, pushing thru the pain and not easing up a bit towards the end. It was during a week of riding there, didn’t really prepare or rest before the ride/climb.
My son was there as well, he did it in 30:11. His PM is a bit conservative, and measured 324w for 68kg.
Being able to ride long days in great weather and with this splendid natural environment, together with my son - that week in Mallorca, these rides were amongst the best days on my bike.
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