POWER

[Howard]

If they are any good my SRM will go for sale

If it's a specialised/lightening or Rotor 3D+ I might be interested. Hit me up.

 

[Mr Haematocrit]

Its the s-works carbon cranks/lightening cranks jobby

 

[ziggys101]

Received my stages power meter last week just getting to grips with riding with it. It certainly highlights when your whimping out of a climb :-)

 

[jarlrmai]

Where did you order a Stages in the UK?

 

[ziggys101]

Where did you order a Stages in the UK?

Didn't I work for a US company so ordered on the company VPN and had delivered to company address and a colleague brought it back after a work trip.

 

[Howard]

Its the s-works carbon cranks/lightening cranks jobby

Drop me a line if you want to sell the SRM spider.

 

[VamP]

Question for you all.

Can a different head unit affect power readings? I recently lost my Edge 500, and just replaced it with another. AFAIK I set it up exactly the same for power recording (1 sec recording, zero average on) but cannot check, because the old one is... erm, lost.

Last night in a 5x5 session I posted 348, 355, 347, 315, and 327 which is a fair bit higher than last week (320, 305, 309, 319, 310), although not at PB levels. Last week I was somewhat fatigued going into the session and believe that this is the reason for the large difference, but obviously having changed the head unit, I want to eliminate that as being the possible cause.

 

[Rob3rt]

Is the new device an Edge 500? Did you zero it? Is the number in agreement with the number from your other head unit?

 

[VamP]

Yes, yes and yes.

 

[Rob3rt]

Same firmware version?

 

[VamP]

Not sure.

The new one is v 3.00 but can't check and don't remember what the old one was.

 

[Rob3rt]

Provided Garmin didn't tinker with the algorithms in software, I would assume you were just tired last week and see how next weeks session goes.

I know when I moved to the 810 all my numbers were different, so I can a 500 and 810 together and found the 810 was riddled with bugs re power data logging and also the averaging schemes were poorly implemented. This has now been ironed out as far as I can tell.

 

[VamP]

Right.

2x20 session tonight so if I am suddenly blowing my FTP out of the water I will update the firmware and see if that changes things.

 

[Rob3rt]

The issues with the 810 were lower average values due to random drops to half of the true power for 2-4 seconds and also poor graphic interface average reporting where sometimes it would take more values than at other times into account so you couldn't use it for real time feedback. Looking at the data next to the data from my Edge 500 after the fact, it was immediately obvious the 810 was under reading.

 

[VamP]

Here's a nice summary of the power meter market place ATM which some may find of interest.