Jancouver

I guess I'm thinking about it too much. Must be the rain here in SoCal but from Thursday on it should be sunny again so I dont have to touch the damn trainer again and can finish my base. Until then (end of January) I dont even want to worry about intervals. That being said, not sure why are you suggesting targeting 300W since I just did 20min at 298W just warming up. My FTP target for next year is at least 370W since my current FTP is somewhere between 330-350W.

echappist

please tell me you aren't a cat 5, or if you are, you are 80kilos. Those are some amazing numbers you put up. Good job

mike868y

alright, I misread the data. just target something that is hard and if you aren't fading at like 15 minutes then ramp it up towards the end.

slim_77

Question: I have a wired PT (SL)...can this be converted to a wireless device? Or is the antenna located inside the hub?

I have already emailed Saris, but have not heard back from them.

Jancouver

This year I was racing as a Cat 5 and did just enough (12) races to race next year as a Cat 4. But no worries, I'm O.F.S (old.fat.slow at 37 6'5 192lb) so those numbers are not that great. BTW I just started with cycling 3 years ago because I was too fat (January 2008 I was 245lb) and needed some exercise.

kensuf

Those numbers really aren't that bad, even at 192#. A lot of guys would give a testicle to have an ftp of 3.4/3.5 w/kg.

teetopkram

I just tried this for the first time. Imported raw FIT file from the Garmin. Worked fine. Then went back and did the usual upload into Garmin Training Center, export file as TCX, then upload into Golden Cheetah. The GCX file gave me an average power of 208 for my ride today (compared to 202 for the FIT file), and a BikeScore of 95 (compared to 89 for the FIT file). These same differences were observed when I uploaded into my free account on trainingpeaks (via my coach). So it seems the GCX file inflates numbers a bit (and reports more time spent riding whereas trainingpeaks reports same time riding in either FIT or GCX file, which corresponds to time riding on the FIT file in Golden Cheetah). Ugh...I don't know what to believe anymore. My belief system is fried

kensuf

Yeah, I've had similar failures in my belief system since discovering my 705 doesn't really record every second of data like it claims to...

echappist

That's a great accomplishment. Well done. I don't know what you guys have out in SD, here in NYC we have a race series at the site of a former airfield (Floyd Bennett). The course is on the former runways of the field, and as such is pancake flat. To boot, there's a lot of wind, so aero and raw power trump weight here. Sounds like you can use races like that to your advantage & dish out some major pain.

GirlAnachronism

Jim, I have a hard enough time hanging on to those races as it is, please don't go giving any more big guys any ideas.

echappist

Opps, i guess the silver lining here is that he's not in NYC. Besides, we all know that you kick serious ass once the grade of the road goes above 3%. I saw that you are planning to sign up for Battenkill. Aimee did quite well in that race, and I'd think you'll dish out quite a bit of pain, too. As for me, 4000 ft of climbing and dirt roads means i'm much more suited for the role of nonparticipant.

GirlAnachronism

Yeah, I was able to mostly hang with her in the RR at Green Mountain until the very end, and she's a 3, so hopefully I'll do well in the 4's. My whole team is going so it should be fun regardless.

waterrockets 

pfft. You're going to rip the legs off the 4s.

echappist

I think my ptap is out of calibration for some reason. When i go to the torque menu, the middle line reads 519. That's a bit too high, right?

The readings were all over the place today. There was a section i know i had to put out at least 270W in order to maintain 22mph, and the ptap read 220W. Grr. What are people's experiences with powertap recalibrating the hub? How long is the turnaround?

waterrockets 

Less than two weeks. Depends on how fast you ship out. It's quicker than they'll quote you, in my experience.

I'm not sure on the calibration menu action, but Saris will run through it with you on the phone.

echappist

Thanks WR. I'll go speak to them tomorrow.

SalsaPodio

Just got my powermeter and did a 20 min test today.

Taking 95% of the average power for the 20 min gave me 279 W for my FTP. Using Golden Cheetah the CP, which from what I understand is the programs estimate of FTP, is 287 W. There are only two rides in the software now so I'm reluctant to believe the programs estimation of FTP.

Which number is more reliable? Right now I think I'm going to use the 95% of the 20 min test, but maybe later switch to the CP value that GC gives. It's only a few watts but that changes my FTP from 3.89 to 3.99 W/kg

I think I'm suffering from information overload, but thats a good thing.

echappist

I'd take the 279W.

The critical power is best done from two different tests, one short (<8min) and one long (>20min)

SalsaPodio

Sounds good. Thanks.

wakko

"Normal" is 512 +/- ~12, although I have an old PT at ~450 that works fine. 519 is within spec.

Do a static torque check. If it's close I wouldn't bother sending it in.

echappist

i don't know if you have the Coogan book or have been to the "seven deadly sins" website, but it may be worth checking out. They usually recommend doing the two points of the test within a short period of time. OTOH, i'm planning to stack my 5' and 20' together (to take into account of fatigue for race day FTP), and i'd think that the data probably won't be as accurate for the critical power.

ridethecliche

Jimbo any chance you had a tailwind on that section?

echappist

it's certainly possible. For now i'm just gonna chalk it up to a freak incidence. Got off the phone w/ the powertap people, and they said 520 should be fine for now. I'll need to pay $350 to get the thing serviced when the time comes.

Also, for anyone who's curious, you can send the signal from one hub to two receivers. The Saris rep was curious as to why i'd want to do that, to which i replied: because it's cheaper than getting a joule.

ridethatbike

Any idea why I would have a 30-second drop like it shows in TP? That doesn't make any sense to me. I have multiple training sessions and a CX race in there as well. Just learning here (reading as much as I can), and that graph just seems very strange to me.

ridethecliche

What would 2 receivers help you with?