The Wattage Thread
Discussion
McFsC said:
FAO Okgo...
Harry Tanfield, 5th u23 in the Time Trial Champs... 10 seconds off the podium. I said he was good about a year ago. He's 19 now, will go pro soon I reckon.
Must be something in the water these days, youngsters seem to be getting very quick at TTs.Harry Tanfield, 5th u23 in the Time Trial Champs... 10 seconds off the podium. I said he was good about a year ago. He's 19 now, will go pro soon I reckon.
I have the U23 winner, Scott Davies near where I live. Very talented youngster, still only 18 or 19.
He keeps stealing my KOMs
I'm going to guess that the number of people who "on here" who a) train fixed and b) train with power is probably zero, but some info for that lack of people:
I've got a Powertap G3 track hub on my training bike, which I had been using with a Garmin 910xt, this worked fine as you can set the zero-offset calibration to manual - i.e. only triggered by the user, which is critical with a fixed drivetrain as otherwise the head unit will decide "oh, he's coasting now" and trigger a calibration event when there is torque applied to the drivetrain, typically leading to runaway power figure inflation.
I sold the 910xt to get a Fenix 2, and put my EDGE 800 on the bike- this proved to be a mistake, as on the latest firmware release Garmin, in their infinite wisdom, have removed the ability to stop the head-unit calibrating when it feels like it.
In order to get round this you need to go here: http://gawisp.com/perry/
And get firmware 2.4, then load that onto the 800 as a downgrade. This downgrade brings back the user-selectable zero-offset, and everything is right with the world again.
The Fenix 2 has now arrived, and once again Garmin have seen fit not to let you control the calibration- however, and I am the first to admit that this is odd, it doesn't seem to be a problem.
I've run it back to back with the 800 for ~100 miles over a number of evening rides and the power figures are identical (within a small margin of error) to the 800.
So I am left to assume that either the Fenix 2 does not auto-zero, or it's magic.
That said, being unable to resist fiddling with things when I should very probably leave well enough alone, I've just updated the Fenix 2 from 2.8 to 3.3 firmware, which may bring in the dreaded auto-zero.
I'll report back (to my audience of none) in the next few days.
I've got a Powertap G3 track hub on my training bike, which I had been using with a Garmin 910xt, this worked fine as you can set the zero-offset calibration to manual - i.e. only triggered by the user, which is critical with a fixed drivetrain as otherwise the head unit will decide "oh, he's coasting now" and trigger a calibration event when there is torque applied to the drivetrain, typically leading to runaway power figure inflation.
I sold the 910xt to get a Fenix 2, and put my EDGE 800 on the bike- this proved to be a mistake, as on the latest firmware release Garmin, in their infinite wisdom, have removed the ability to stop the head-unit calibrating when it feels like it.
In order to get round this you need to go here: http://gawisp.com/perry/
And get firmware 2.4, then load that onto the 800 as a downgrade. This downgrade brings back the user-selectable zero-offset, and everything is right with the world again.
The Fenix 2 has now arrived, and once again Garmin have seen fit not to let you control the calibration- however, and I am the first to admit that this is odd, it doesn't seem to be a problem.
I've run it back to back with the 800 for ~100 miles over a number of evening rides and the power figures are identical (within a small margin of error) to the 800.
So I am left to assume that either the Fenix 2 does not auto-zero, or it's magic.
That said, being unable to resist fiddling with things when I should very probably leave well enough alone, I've just updated the Fenix 2 from 2.8 to 3.3 firmware, which may bring in the dreaded auto-zero.
I'll report back (to my audience of none) in the next few days.
Nibali's SRM from his attack and Holme Moss on the Tour de France stage yesterday
http://www.srm.de/news/road-cycling/tour-de-france...
http://www.srm.de/news/road-cycling/tour-de-france...
Always interesting to see that.
Easy to see why the big lads were going backwards up that climb if Nibbler was doing 400w up there. That said, it kind of shows how easy it is for the likes of Froome etc. While he weighs more, I doubt Froome was doing more than his FTP up that climb, for 12 mins, he'll still be nice and fresh I think!
500w for two mins at 60kg is chunky!
Easy to see why the big lads were going backwards up that climb if Nibbler was doing 400w up there. That said, it kind of shows how easy it is for the likes of Froome etc. While he weighs more, I doubt Froome was doing more than his FTP up that climb, for 12 mins, he'll still be nice and fresh I think!
500w for two mins at 60kg is chunky!
okgo said:
Always interesting to see that.
Easy to see why the big lads were going backwards up that climb if Nibbler was doing 400w up there. That said, it kind of shows how easy it is for the likes of Froome etc. While he weighs more, I doubt Froome was doing more than his FTP up that climb, for 12 mins, he'll still be nice and fresh I think!
500w for two mins at 60kg is chunky!
Freaks the lot of em!Easy to see why the big lads were going backwards up that climb if Nibbler was doing 400w up there. That said, it kind of shows how easy it is for the likes of Froome etc. While he weighs more, I doubt Froome was doing more than his FTP up that climb, for 12 mins, he'll still be nice and fresh I think!
500w for two mins at 60kg is chunky!
Rocksteadyeddie said:
Great that he puts the numbers out there. Also "What ave watts do I need to get round a 4th cat crit?" questioners note... His overall average for the stage was 221w. And the best bike race in the World was spread all over the road.
That is the thing isn't it, crazy low averages, but bursts of real difficulty. Laurens Ten Dam is posting his power data to strava if anyone is interested. I think he was in the second group at the finish of yesterdays stage:
http://www.strava.com/activities/162458459
http://www.strava.com/activities/162458459
okgo said:
Rocksteadyeddie said:
Great that he puts the numbers out there. Also "What ave watts do I need to get round a 4th cat crit?" questioners note... His overall average for the stage was 221w. And the best bike race in the World was spread all over the road.
That is the thing isn't it, crazy low averages, but bursts of real difficulty. 
I've joined the power club, with a purchase of the Garmin Vectors last week, had a few easier rides with them and a club run, but set them up on the TT bike for my clubs TT tonight which was just under 20 miles.
Had a really poor first 2/3rds, felt very tired, think I done too many miles yesterday, but managed to ramp it up for the last 6 or so miles. Didn't realise just how fast I spin on the TT bike, pushing an average cadence of 101.
Overall managed a 50:55, which wasn't great, so going to give my legs a bit of a rest before the local league 25 miler on Sunday morning. Managed to push out an average of 290W, which I think is quite good, putting me at about 4.3W/KG. The 25 on Sunday will give me a true hour, which I will be using for my FTP, unless people can advise otherwise.
http://connect.garmin.com/activity/538691825
Any advise anyone has for me for interpreting the data and improving above and beyond what is in this thread it would be appreciated.
Had a really poor first 2/3rds, felt very tired, think I done too many miles yesterday, but managed to ramp it up for the last 6 or so miles. Didn't realise just how fast I spin on the TT bike, pushing an average cadence of 101.
Overall managed a 50:55, which wasn't great, so going to give my legs a bit of a rest before the local league 25 miler on Sunday morning. Managed to push out an average of 290W, which I think is quite good, putting me at about 4.3W/KG. The 25 on Sunday will give me a true hour, which I will be using for my FTP, unless people can advise otherwise.
http://connect.garmin.com/activity/538691825
Any advise anyone has for me for interpreting the data and improving above and beyond what is in this thread it would be appreciated.
I'd say a 25 mile TT is a good way to get a fairly robust figure. Obviously depending on how you cope in a more hunched position the power could be a bit less than on the roadbike in upright position.
Seems these horrid little mid week crits which are basically just tabata intervals have give me a bit of top end. Managed 470w for a 5 min climb last night which I think is a pb! (though for the segment it says 460 as I think I stopped pedaling a bit early).
Still not challenging the very sharp end of this segment, but I think if I was on my lighter wheels, without two bottles etc etc, I wouldbe closer! Fastest up that climb this year though, which always feels a bit odd given nearly 3000 people have done it!
http://www.strava.com/activities/165946444/segment...
Seems these horrid little mid week crits which are basically just tabata intervals have give me a bit of top end. Managed 470w for a 5 min climb last night which I think is a pb! (though for the segment it says 460 as I think I stopped pedaling a bit early).
Still not challenging the very sharp end of this segment, but I think if I was on my lighter wheels, without two bottles etc etc, I wouldbe closer! Fastest up that climb this year though, which always feels a bit odd given nearly 3000 people have done it!
http://www.strava.com/activities/165946444/segment...
I really doubt Martin is doing 430. Likely nearer 450-460 up there with Brad.
As much as I like Dowsett, he's not in the same league as Fabian, Martin and Brad when it comes to testing.
On last years world champs - "He revealed that like Wiggins, he was pushing out more than 450 watts and went faster than his planned threshold."
As much as I like Dowsett, he's not in the same league as Fabian, Martin and Brad when it comes to testing.
On last years world champs - "He revealed that like Wiggins, he was pushing out more than 450 watts and went faster than his planned threshold."
Edited by okgo on Friday 1st August 12:11
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