anyone using an elite+ powertap with a garmin 705?

2

Comments

  • a_n_t
    a_n_t Posts: 2,011
    I was quite disappointed with my figures tbh! 2.6 w/kg cant be right when I can bang out a mid 23 minute 10 can it? I'm only 73 kg :) it put me in the "untrained cyclist" group!!
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • Bronzie
    Bronzie Posts: 4,927
    190W sounds very low - how did you do the test?
  • a_n_t
    a_n_t Posts: 2,011
    probably not how you should. It was just a 2X20 session to get some figures.

    http://img.photobucket.com/albums/v256/ ... titled.jpg


    Must admit I thought my power would be higher.
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • Anonymous
    Anonymous Posts: 79,667
    a_n_t wrote:
    I was quite disappointed with my figures tbh! 2.6 w/kg cant be right when I can bang out a mid 23 minute 10 can it? I'm only 73 kg :) it put me in the "untrained cyclist" group!!

    Untrained cyclist?!?

    Join the club!
    :o
  • a_n_t
    a_n_t Posts: 2,011
    well I've not been doing much training but "untrained"?? Hardly :)
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • jibberjim
    jibberjim Posts: 2,810
    a_n_t wrote:
    I was quite disappointed with my figures tbh! 2.6 w/kg cant be right when I can bang out a mid 23 minute 10 can it? I'm only 73 kg :) it put me in the "untrained cyclist" group!!

    You would need to be pretty aerodynamic to get mid 23 ten on ~230 watts but it's not impossible. Don't bother trying to guess, and certainly don't take any numbers from anything but an all out test, just go ride all out for an ~ hour, and use that.
    Jibbering Sports Stuff: http://jibbering.com/sports/
  • Anonymous
    Anonymous Posts: 79,667
    a_n_t wrote:
    well I've not been doing much training but "untrained"?? Hardly :)

    I am only just touching Cat4 FTP and 5 min power. My 5 sec is untrained and my 1 min doesn't even register!!
  • Jaeger
    Jaeger Posts: 439
    a_n_t wrote:
    I was quite disappointed with my figures tbh! 2.6 w/kg cant be right when I can bang out a mid 23 minute 10 can it? I'm only 73 kg :) it put me in the "untrained cyclist" group!!

    I did a 20min Test tonight and averaged 270W with an average HR of 179bpm. Taking 95% of this gives an estimate of FTP = 257W.

    I am 72kg and have done a 23:49 TT10 on a flatish course.

    Using http://bikecalculator.com/veloUS.html the power required for this time using aerobars and clinchers at 60deg F at 100ft is 260W, which seems to tie in with my calculated FTP from the 20min test.

    From your stats/weight etc i would have thought your power output would be similar.

    I'm looking forward to getting out and doing a 25mile TT to check AP/NP over a full hour, but until then, this predicted value will give me a ballpark figure on which to base workouts.
  • a_n_t
    a_n_t Posts: 2,011
    jibberjim wrote:
    You would need to be pretty aerodynamic to get mid 23 ten on ~230 watts but it's not impossible. Don't bother trying to guess, and certainly don't take any numbers from anything but an all out test, just go ride all out for an ~ hour, and use that.


    I averaged 184 watts during that 2x20, it's unlikely that I could hold that pace for an hour tbh going off how I felt at the end.

    Something doesn't seem right which is annoying when a PM is meant to remove all the guesswork!
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • Anonymous
    Anonymous Posts: 79,667
    Ant, your HR seems very low for the 2 x 20...

    Try a proper 20 min test...

    This is from an SST session a week or so ago. HR goes up quite a bit.

    CardiacDriftIllustration.jpg
  • a_n_t
    a_n_t Posts: 2,011
    Jaeger wrote:
    95% of this gives an estimate of FTP = 257W.

    I am 72kg and have done a 23:49 TT10 on a flatish course.

    http://www.westmeadteam88.co.uk/event_r ... php?id=119

    beat you by a second! :lol: just to prove I'm no bhima :wink:

    Kinda proves my point or maybe i need to just MTFU!
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • a_n_t
    a_n_t Posts: 2,011
    I find it really hard to get my HR up on the turbo, my legs fatigue waay before my ticker!
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • jibberjim
    jibberjim Posts: 2,810
    Jaeger wrote:
    I'm looking forward to getting out and doing a 25mile TT to check AP/NP over a full hour, but until then, this predicted value will give me a ballpark figure on which to base workouts.

    I'd really recommend riding more and collecting data without trying to jump straight into "training with numbers" You need to know what you can actually do first, you could just be doing really badly in the particular test you choose and it not really be typical of your actual strength.
    Jibbering Sports Stuff: http://jibbering.com/sports/
  • Jaeger
    Jaeger Posts: 439
    a_n_t wrote:
    http://www.westmeadteam88.co.uk/event_results.php?id=119

    beat you by a second! :lol: just to prove I'm no bhima :wink:

    Kinda proves my point or maybe i need to just MTFU!

    http://www.readingcyclingclub.com/node/478

    Will post you another link in a few weeks when I do a 23:47... :D
  • jibberjim
    jibberjim Posts: 2,810
    a_n_t wrote:
    I find it really hard to get my HR up on the turbo, my legs fatigue waay before my ticker!

    Don't take a turbo test and use it as a base for numbers outdoors! Do your testing and your riding in similar situations.
    Jibbering Sports Stuff: http://jibbering.com/sports/
  • Anonymous
    Anonymous Posts: 79,667
    jibberjim wrote:
    a_n_t wrote:
    I find it really hard to get my HR up on the turbo, my legs fatigue waay before my ticker!

    Don't take a turbo test and use it as a base for numbers outdoors! Do your testing and your riding in similar situations.

    My indoor and outdoor performances are quite different, but they are getting closer. It also takes a while to get used to riding looking at power output...
  • Anonymous
    Anonymous Posts: 79,667
    edited June 2010
    Doppfle Posten
  • a_n_t
    a_n_t Posts: 2,011
    No can do. With a 5 month old baby the training is on the turbo or not at all! Hence me buying the powertap for "quality not quantity" :?
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • Anonymous
    Anonymous Posts: 79,667
    a_n_t wrote:
    No can do. With a 5 month old baby the training is on the turbo or not at all! Hence me buying the powertap for "quality not quantity" :?

    Wow! We seem to be living parallel lives!

    Mid 23 10 mile TT

    Untrained on WKO+

    Tied to turbo training due to family/work commitments!
  • a_n_t
    a_n_t Posts: 2,011
    :lol:

    I'll come and do one of your club 10's soon and see where my 184 watts gets me! :lol:
    Manchester wheelers

    PB's
    10m 20:21 2014
    25m 53:18 20:13
    50m 1:57:12 2013
    100m Yeah right.
  • Anonymous
    Anonymous Posts: 79,667
    I think I have the aerodynamics of a Volvo 240D. I should be miles faster!
  • jibberjim
    jibberjim Posts: 2,810
    a_n_t wrote:
    No can do. With a 5 month old baby the training is on the turbo or not at all! Hence me buying the powertap for "quality not quantity" :?

    That's okay, but what I mean is, the power you're doing on a 10 may be very different to what you can produce on the turbo.
    Jibbering Sports Stuff: http://jibbering.com/sports/
  • Anonymous
    Anonymous Posts: 79,667
    jibberjim wrote:
    a_n_t wrote:
    No can do. With a 5 month old baby the training is on the turbo or not at all! Hence me buying the powertap for "quality not quantity" :?

    That's okay, but what I mean is, the power you're doing on a 10 may be very different to what you can produce on the turbo.

    What jim says is certainly the case for me...
  • you need to MTFU if training indoors. you can push much harder. just takes dedication and weeks of trying. cooling could be an issue. its been hot recently.

    without looking at the numbers while riding:
    1: get out on the road for an hour just to gather some data. do all kinds of stuff. sprints etc.
    2: do the same efforts indoors
    3: compare

    indoor numbers will be lower for the same effort or the same for a harder percieved effort.

    just do the TT at your normal pace and then you can analyse the numbers afterwards. race wattages are always higher IME.
  • Bronzie
    Bronzie Posts: 4,927
    a_n_t wrote:
    Something doesn't seem right which is annoying when a PM is meant to remove all the guesswork!
    Is your PM new or 2nd hand Ebay purchase?
    If new it SHOULD be a reliable reading, if 2nd hand, who knows what the calibration is.

    Did you "calibrate"* with the Garmin before the ride? If so, when you did the "Calibration" with the Garmin, did you have any tension on the chain?
    There must be no torque applied to the hub when you calibrate otherwise it will read low.

    If the reading is still suspect after correctly "calibrating" with the Garmin, can you borrow a PowerTap yellow head unit from somewhere to do a "stomp test" on the hub?

    * - the word calibrate implies you can alter and adjust the zero offset, which with a Garmin as a head unit you can't. All you are doing is setting the hub torque reading at the point of "Calibration" to zero. Therefore if you are applying torque to the hub when you do this (ie you have your right foot in the pedal putting tension on the chain) you will lower the power readings reported afterwards until the unit resets when coasting (assuming "Auto Calibrate" has been selected)
  • DaveyL
    DaveyL Posts: 5,167
    you need to MTFU if training indoors. you can push much harder. just takes dedication and weeks of trying. cooling could be an issue. its been hot recently.

    without looking at the numbers while riding:
    1: get out on the road for an hour just to gather some data. do all kinds of stuff. sprints etc.
    2: do the same efforts indoors
    3: compare

    indoor numbers will be lower for the same effort or the same for a harder percieved effort.

    just do the TT at your normal pace and then you can analyse the numbers afterwards. race wattages are always higher IME.

    There are genuine reasons why power might be difficult. See this article from Alex's blog:

    http://alex-cycle.blogspot.com/2009/01/ ... ining.html
    Le Blaireau (1)
  • Bronzie
    Bronzie Posts: 4,927
    NapoleonD wrote:
    Ant, your HR seems very low for the 2 x 20...
    Similar to mine...........but my max is around 170. Anything over mid 150's is definitely red zone for me.

    You can't compare HRs with others unless you know what their max is.
  • Pross
    Pross Posts: 43,464
    Sorry to hijack the thread but something I've been meaning to ask for a while. I'm thinking of getting a power meter as my next big buy when funds become available (toss up with a track bike). I just want to get my head straight as to exactly what I need to buy in total. Is it a case of having a wheel built up from a Powertap hub and then either a Powertap head unit or a compatible Garmin etc.? If so which way would you go for the most cost effective solution? My reading of the early posts on here suggests maybe a Garmin 500 (I don't really want maps and satnav for the extra they cost). Do you get an HR monitor with any of the other equipment or is that a separate purchase?
  • Anonymous
    Anonymous Posts: 79,667
    Bronzie wrote:
    NapoleonD wrote:
    Ant, your HR seems very low for the 2 x 20...
    Similar to mine...........but my max is around 170. Anything over mid 150's is definitely red zone for me.

    You can't compare HRs with others unless you know what their max is.

    Ant is a young lad, his max will be over 190 fo'sho.
  • hopper1
    hopper1 Posts: 4,389
    As you don't want maps etc, then a 500, or the LYC (head unit with PT) would be good enough for you.
    You could choose somewhere like wheelbuilder to make a set of wheels to your spec, with either head unit. Or, go to cyclepowermeters.com and buy a pre built hub on a Mavic Open Pro rim... :wink:
    Start with a budget, finish with a mortgage!