Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

"The 33"-Road Bike Racing We set this forum up for our members to discuss their experiences in either pro or amateur racing, whether they are the big races, or even the small backyard races. Don't forget to update all the members with your own race results.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-16-09, 07:00 AM   #1501
Hocam
Ho-Jahm
 
Hocam's Avatar
 
Join Date: Nov 2006
Location: Manchester, NH
Bikes:
Posts: 4,228
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I have a question that's been nagging me for a bit.

Pre-peak my FTP was estimated at 260 from a variety of sources (NP for races, 2x20' tests, 3' test).

I peaked and raced a 22 mile hilly RR, NP 279 for the 1 hour race. Normally I wouldn't bother about ftp, but on the finishing climb I had a peak 10' of 317 watts with a 5' PR of 325 in the first five minutes, previous was 315.

What the hell was going on? 10' seems way too long for VO2 kind of power.
Hocam is offline   Reply With Quote
Old 09-16-09, 07:36 AM   #1502
waterrockets 
Making a kilometer blurry
 
waterrockets's Avatar
 
Join Date: May 2006
Location: Austin (near TX)
Bikes: rkwaki's porn collection
Posts: 26,130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
How did you test your 5' power when you got 315?
waterrockets is offline   Reply With Quote
Old 09-16-09, 07:51 AM   #1503
Jynx
.....
 
Jynx's Avatar
 
Join Date: Aug 2006
Location: Long Island
Bikes: 2006 Cannondale CAAD8
Posts: 4,816
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
most likely because a 5' climb was easier to maintain a higher power then 5' on a flat road?
__________________
Weight Listing Index (Feel Free to add to it!)

Buy your bike parts here
Jynx is offline   Reply With Quote
Old 09-16-09, 07:58 AM   #1504
substructure
RustyTainte
 
substructure's Avatar
 
Join Date: Jul 2005
Location: 28012
Bikes: zilch
Posts: 12,343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Maybe today with the Head Unit. Maybe.
substructure is offline   Reply With Quote
Old 09-16-09, 08:01 AM   #1505
bdcheung
Carpe Diem
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
i'm thinking about ditching power for this season
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 09-16-09, 08:28 AM   #1506
Jynx
.....
 
Jynx's Avatar
 
Join Date: Aug 2006
Location: Long Island
Bikes: 2006 Cannondale CAAD8
Posts: 4,816
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
reason?
__________________
Weight Listing Index (Feel Free to add to it!)

Buy your bike parts here
Jynx is offline   Reply With Quote
Old 09-16-09, 08:37 AM   #1507
ridethecliche
Village Idiot
Thread Starter
 
Join Date: Jan 2007
Location: Bahstaaaaan
Bikes:
Posts: 20,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
I'd go by the 280 number Hocam. That's race performance, but what was the VI, that might be important. Consider that before using 280.
ridethecliche is offline   Reply With Quote
Old 09-16-09, 08:49 AM   #1508
bdcheung
Carpe Diem
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Jynx View Post
reason?
Just to try training by a different method.
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 09-16-09, 08:53 AM   #1509
waterrockets 
Making a kilometer blurry
 
waterrockets's Avatar
 
Join Date: May 2006
Location: Austin (near TX)
Bikes: rkwaki's porn collection
Posts: 26,130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Is power making you hate training?
waterrockets is offline   Reply With Quote
Old 09-16-09, 09:05 AM   #1510
bdcheung
Carpe Diem
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I wouldn't say that, but riding without power these past weeks has been very refreshing.
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 09-16-09, 09:34 AM   #1511
Hocam
Ho-Jahm
 
Hocam's Avatar
 
Join Date: Nov 2006
Location: Manchester, NH
Bikes:
Posts: 4,228
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by waterrockets View Post
How did you test your 5' power when you got 315?
It was from a race I think, I'll have to check when I get home.


Quote:
Originally Posted by ridethecliche View Post
I'd go by the 280 number Hocam. That's race performance, but what was the VI, that might be important. Consider that before using 280.
VI was something like 1.2, so pretty up there which makes me doubt the FTP-bustness.

Either way, I took a long break from riding and can definitely not produce those kind of numbers right now.
Hocam is offline   Reply With Quote
Old 09-16-09, 10:07 AM   #1512
waterrockets 
Making a kilometer blurry
 
waterrockets's Avatar
 
Join Date: May 2006
Location: Austin (near TX)
Bikes: rkwaki's porn collection
Posts: 26,130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Hocam View Post
It was from a race I think, I'll have to check when I get home.
Yeah, I don't see how anyone can have a true physiologically maximal effort in a race. At the end of a 5-minute test, I'd be completely out of the race from exhaustion (once they caught me). I know a couple people who's MMPs for 1' are from races, but I still think those numbers could be beaten with a dedicated test.
waterrockets is offline   Reply With Quote
Old 09-16-09, 12:12 PM   #1513
ridethecliche
Village Idiot
Thread Starter
 
Join Date: Jan 2007
Location: Bahstaaaaan
Bikes:
Posts: 20,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by Hocam View Post
It was from a race I think, I'll have to check when I get home.




VI was something like 1.2, so pretty up there which makes me doubt the FTP-bustness.

Either way, I took a long break from riding and can definitely not produce those kind of numbers right now.
For an effort like that, I think you allow yourself small recoveries which allow you to go over FTP again ala crits.

it's time to build up again anyway. So start doing intervals at like 220 or 230 and keep moving them up every few weeks.
ridethecliche is offline   Reply With Quote
Old 09-16-09, 01:43 PM   #1514
Scummer
Genetics have failed me
 
Scummer's Avatar
 
Join Date: Jun 2007
Location: Zorneding, Germany
Bikes: Norwid Aaland, Dahon mju, Pedalforce CX1, Trek Madone 5.9, Old MTB and lots of spare parts
Posts: 3,003
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
crap.. my PT is acting up extremely weird. I reset the headunit, took the battery out and cleared the memory and what not.
The problem is this. I do a steady effort, maybe 180W or so and the current power shoots up to maybe 80W, then declines over a short period of time until it hits 0 and then stays 0. Very very odd. I experienced that problem yesterday for the first time.

I think the next step is to take the batteries out of the hub and see if that does any good.

Thomas
__________________
Gelato aficionado.
Scummer is offline   Reply With Quote
Old 09-16-09, 01:44 PM   #1515
bdcheung
Carpe Diem
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
it's a hub issue
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 09-16-09, 02:25 PM   #1516
Scummer
Genetics have failed me
 
Scummer's Avatar
 
Join Date: Jun 2007
Location: Zorneding, Germany
Bikes: Norwid Aaland, Dahon mju, Pedalforce CX1, Trek Madone 5.9, Old MTB and lots of spare parts
Posts: 3,003
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
It sure was. Removed the hub batteries.. let it sit without batteries for a while, put it back in and voila.. 200W feel like 200W again.
__________________
Gelato aficionado.
Scummer is offline   Reply With Quote
Old 09-16-09, 02:37 PM   #1517
Flatballer
No matches
 
Flatballer's Avatar
 
Join Date: Aug 2008
Location: Eastern PA
Bikes: two wheeled ones
Posts: 10,681
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 73 Post(s)
Quote:
Originally Posted by waterrockets View Post
Here's the workout: http://www.trainingbible.com/joesblo...cing-post.html

Note that when he says "CP60 from a race," he's talking about average power, not normalized power. Note also that I left out the 2 minute recoveries in my previous post -- tough workout.
How do you view the average from the previous interval? If you set up the interval, is that what the average power shows at the top? I always thought it was just total average for the ride.

So do I press INT before I start the interval, and then INT when it's over (10 minutes, 8 minutes, whatever), I check the average power on the top line, and it'll be the average of the last interval?
Flatballer is offline   Reply With Quote
Old 09-16-09, 03:00 PM   #1518
waterrockets 
Making a kilometer blurry
 
waterrockets's Avatar
 
Join Date: May 2006
Location: Austin (near TX)
Bikes: rkwaki's porn collection
Posts: 26,130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Yeah, I go into interval mode by holding "mode" for 2s. That shows data for the current interval only. I use that to track my time in the current interval. Then, when the time is up, I press both buttons and start recovering. During that two minutes, I "mode" my way to the flashing "int," then hold "select" for two seconds, which goes into interval browse mode. Then I hit select until I loop back around to my previous interval (the current one is the current recovery). Then I look at average power and see where I ended up. "mode" back to the "int" line, and hold select for 2s to get back to seeing only the current interval. Press both buttons when the 2 minutes is up, and get rocking.
waterrockets is offline   Reply With Quote
Old 09-16-09, 04:49 PM   #1519
Flatballer
No matches
 
Flatballer's Avatar
 
Join Date: Aug 2008
Location: Eastern PA
Bikes: two wheeled ones
Posts: 10,681
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 73 Post(s)


I'm gonna need to write myself a manual for all that.

At least I learned something already. I didn't know about all that interval surfing stuff. I thought you could only look at intervals later, never knew you could view them on the bike. Pretty nifty.
Flatballer is offline   Reply With Quote
Old 09-16-09, 07:55 PM   #1520
waterrockets 
Making a kilometer blurry
 
waterrockets's Avatar
 
Join Date: May 2006
Location: Austin (near TX)
Bikes: rkwaki's porn collection
Posts: 26,130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Yeah, it's all on page 14, here. I missed telling you about the "M" next to "int" which indicates you're browsing intervals.
waterrockets is offline   Reply With Quote
Old 09-17-09, 08:03 AM   #1521
substructure
RustyTainte
 
substructure's Avatar
 
Join Date: Jul 2005
Location: 28012
Bikes: zilch
Posts: 12,343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Should have my PowerTap back today. They were real quick to respond with my problem and sending out a new one. Only had to pay for shipping to them. Just awesome!
substructure is offline   Reply With Quote
Old 09-20-09, 03:55 AM   #1522
jfm
Member
 
Join Date: Oct 2004
Bikes:
Posts: 29
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hello. I purchased a new SRM power meter in late June of this year. The zero offset every morning has been in the mid 390's. Around Sept. 1 the Zero offset changed to 407 to 410. Today the zero offset is 457. No changes in temperature. I did ride in the rain the previous day but every thing worked fine this morning execpt the change in zero offset. Is this normal or do I need to have it checked? The zreo offset has now been stable for a week in the 460 range.
jfm is offline   Reply With Quote
Old 09-20-09, 08:35 AM   #1523
Jynx
.....
 
Jynx's Avatar
 
Join Date: Aug 2006
Location: Long Island
Bikes: 2006 Cannondale CAAD8
Posts: 4,816
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Here is some info:

SRM says that a zero offset change of 10 Hz would be about 1 watt.

Q: My zero offset value has changed. Could this be a problem?

A: It is normal for the zero offset to change. As long as the zero offset is between 100 and 600,
the Powermeter will function correctly. Should the value lie above or below this, the Powermeter
must be sent in to be checked.


Q: Zero offset frequency shifting more than +/- 10 Hz:


A: Possible causes:

•The sensor position in relation to he PowerMeter's transmit coil may be less then optimum.More Information: Sensor Mounting [PDF - 1.3MB].

•The PowerMeter has been moved from one temperature to another (i.e.. indoors to outdoors in the winter). This causes the metal to contract, and will change the zero offset frequency. For a crank with a fairly typical slope of 20.00 Hz/Nm, it is normal for the zero offset frequency to change about 7-8 Hz per degree Celsius. Solution: Allow the bike to acclimatise by leaving it outside for at least half an hour before riding. Check and set the zero offset frequency before the ride, and then recheck it after approximately 10 minutes to ensure that it has stabilised.

•The chain ring bolts may be loose. This allows the chain rings to move slightly on the PowerMeter, and will distribute force through it differently. Solution: Check that the chain ring bolts are tight (use 6 to 10 Nm of force to tighten them). Tighten every second bolt in turn, as this creates more constant pressure on the O-ring seal inside the PowerMeter.

•The crank bolts may be loose. It is very important that a thread lock product (i.e. blue Loctite) is used on these bolts, and that it is allowed to set before the cranks are used. Otherwise the bolts may loosen, which causes the zero offset frequency to become unstable. Solution: Remove the crank bolts, apply thread lock to the threads, and then reinsert the bolts. Tighten them with 6 to 10 Nm of force, and allow them to set for the time recommended on the package.

•The washer in between the crank arm and the PowerMeter is inserted incorrectly, or has cracked. There are different sizes of washers for older cranks, and not all of them are interchangeable. If the wrong one is in place, the crank arm will not sit tightly on the PowerMeter, and the zero offset frequency will become unstable. It can also cause the crank bolts to snap. Solution: Make sure that the right washer is inserted, and that grease is applied to it's surfaces before it is put into place in the PowerMeter.
__________________
Weight Listing Index (Feel Free to add to it!)

Buy your bike parts here
Jynx is offline   Reply With Quote
Old 09-20-09, 08:54 AM   #1524
ridethecliche
Village Idiot
Thread Starter
 
Join Date: Jan 2007
Location: Bahstaaaaan
Bikes:
Posts: 20,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Haha, oops. My zero offset has been at around 720 since I got it, but the numbers have matched up with computrainers and other devices.

Whatever.
ridethecliche is offline   Reply With Quote
Old 09-20-09, 04:56 PM   #1525
aperez8264
Foot + Mouth = me
 
aperez8264's Avatar
 
Join Date: Dec 2007
Location: belleville, nj
Bikes: 2007 Specialized Tarmac Pro
Posts: 198
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What is the FTP correlation to weight?

Since my season ended a few weeks ago, I've done a little over indulging in booze and such(I make it a point to not drink during the season, but have been going out the past few weekends). I am doing an FTP test this week as I begin to move into my prep phase. Looking at my numbers over the last few weeks of easy rides, it seems i have lost around 20-30 watts.
aperez8264 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 01:00 PM.