Power Meters / Powermeters (SRM, Powertap, Quarq, Ergomo, Vector, Stages, power2max, P2M, 4iii, InPower, Cinch)

Essentially i think i want to find out what my FTP then apply a formula to that to work out what output i should be aiming for a 100 mile TT and then another reduction for 112 miles with a marathon to do afterwards...

You'll be looking around 70-75% of FTP for the bike course, I believe.

If you're considering an ironman then surely an hour on a trainer is manageable.

You really think Sky's budget doesn't extend to 'power meters for everyone!'?

They will all of had them but not on all bikes so spare bikes etc might not have them. Pretty sure there was a stage that they said they used compacts so had no power as they never had the SRM's for it

Really?

If I was to do the sessions given to me by my coach with any accuracy then yes

You've got a coach?

Shit just got real.

You'll be looking around 70-75% of FTP for the bike course, I believe.

That low? 75% of 340 is 255 and I did 4h at the last week, without much sweat.

I know rick posted figures on TTforum based on his athletes. I'll go look.

Yup had one for about 3 months now, hopefully 2014 isn't going to be the year of hitting form at the end of the season!

If you're considering an ironman then surely an hour on a trainer is manageable.

Its not a problem at all TBH, and I was planning on doing a spinning class afterwards.

Is an FTP test just an hour on the bike at full beans after a warm up and the average power produced?

If that's the case then as long as i can get in there an hour before the spin class starts then it shouldn't be a problem...

Except that he's doing steady state long course triathlon/TT so 30s, 2m, 5m power values are almost irrelevant and tend to increase with increased FTP anyway.

Thats kinda why I included the last line though.

\LOL at contemplating doing anything after a full 60min test.

Don't bother doing 60min indoors, it's not realistic. Do 40min. As with a number pinned on you could do 60 outside, or a 25M TT.

Is a 110bcd to 144bcd adaptor plate a viable option for a powermeter on a track bike? That with a P2M or a powertap with wheel covers seem to be about the same price, and the P2M could be put on a road bike as well.

Here you go. Not the exact thread I wanted, with Ric's posting.

100mile TT pacing as a % of FTP.

http://www.timetriallingforum.co.uk/index.php?showtopic=71191&st=0&p=1123466&hl=percentage&#entry1123466

Its not a problem at all TBH, and I was planning on doing a spinning class afterwards.

Is an FTP test just an hour on the bike at full beans after a warm up and the average power produced?

If that's the case then as long as i can get in there an hour before the spin class starts then it shouldn't be a problem...

If you consider your power output is separated into the length of time you can put out said power. FTP is the 60min value. So yes.

http://brimages.bikeboardmedia.netdna-cdn.com/wp-content/uploads/2013/05/Coggan-Training-Levels.png

Don't think the P2M will work with a fixed drivetrain, could be wrong though but reckon it would give totally wonky readings

Ah yeah bollocks, I always forget about that.

You need to check how it auto zeros and other such weirdness.

\LOL at contemplating doing anything after a full 60min test.

Don't bother doing 60min indoors, it's not realistic. Do 40min. As with a number pinned on you could do 60 outside, or a 25M TT.

not necessarily doing anything, but I'll be in the way if I'm in there during the spin class.

If I can manage it then I will though, they don't give out Ironman finishers medals to wimps...

Don't bother doing 60though. Do 40. If you want to know your FTP. 60 will be lower, than your real FTP.

so do i just use that value then, or do i have to do some mathematical wizardry?

After a 20min test (takes an hour). Even after the warm down, it takes me 15 mins to get undressed and into the shower. If you do a proper 60 min test. You will be empty.

Nope. 40min indoors would be a pretty good value I think. Have a good progressive 10min warm up first.

But do note hippys comment and link, the best test is the one that is repeatable. I'd never do anything other than a MAP test. So if you're happy to stick with this test then do it. If 20min with a blow out first is more repeatable then do that.
Also note my comment on watt bike power reading fluctuation between machines.

It doesn't really matter exactly what you do, you'll get a figure in the same region. And the only real test is the real thing.

They will all of had them but not on all bikes so spare bikes etc might not have them. Pretty sure there was a stage that they said they used compacts so had no power as they never had the SRM's for it

Maybe they never bothered buying them for a single stage worth of spare bikes. If it's extreme enough they need to swap to compacts on spare bikes they're probably not likely worrying about their power, more likely hanging on.

If I was to do the sessions given to me by my coach with any accuracy then yes

Didn't cadence drills go out with 1000k weeks?

That low? 75% of 340 is 255 and I did 4h at the last week, without much sweat.

Yes I believe it was around that.
It's a 4-6hr bike course and you have to run an effective marathon after it.

Oh Ironman. Not 100TT. Crossedwires.