What is your Power to weight ratio ?

[bruce]

Or you can do a ramp test' date=' slowly increasing power by 50w every 2.5 mins until you cant turn the cranks on those frekkin spinning bikes any more! then you use the power number from the last full 30 secs you could perform.
[/quote']

 

Ramp test will give you an indication of power @ VO2Max - maximal aerobic power.  20/60min TT will provide power at lactate threshold.

[davidtinker]

I guess' date=' I don't have a powertap. All I know is a lot of my stuff breaks - two sets of cranks, one set of pedals and one aluminium frame (massive crack at the BB) in the last year.[/quote']

 

 

 

Hmm. I was going to suggest that you take my Pedalforce for a spin to try it out before buying one but now I am not so sure

[JasonW]

Most peoples true watts/kg at threshold is lower than they think.

 

Is that because they think they weigh less than they do, or becasue they think they are stronger than they are  ... or both

[bruce]

Most peoples true watts/kg at threshold is lower than they think.

 

Is that because they think they weigh less than they do' date=' or becasue they think they are stronger than they are  ... or both

[/quote']

Most people have never done a true 60min TT with a properly calibrated power meter.  The results are usually lower than they think.

 

Grand Tour winners are in the region of 6watt/kg at threshold.

[JasonW]

Tend to agree re the 60 min TT. The onlt time that I've ever done one was on Alpe d'Huez! It was actually reasonably close to my FTP based on 95% of 20 min avg power.

[bruce]

Tend to agree re the 60 min TT. The onlt time that I've ever done one was on Alpe d'Huez! It was actually reasonably close to my FTP based on 95% of 20 min avg power.

95% of 20 min max AP is a reasonable estimate.  But a lot of people use 20min NP which tends to overestimate.  Using 20min AP the FTP range can be 90% to 97%, which is quite wide.

Most people tend to use the estimate method that yeilds the biggest number, and there are very few properly calibrated and zero'd power meters in use.

[Lucky Luke.]

 

I guess' date=' I don't have a powertap. All I know is a lot of my stuff breaks - two sets of cranks, one set of pedals and one aluminium frame (massive crack at the BB) in the last year.[/quote']

 

 

 

Hmm. I was going to suggest that you take my Pedalforce for a spin to try it out before buying one but now I am not so sure

 

I'm sold on your frame already so no need to risk it

Soon as I've bought my mtb I'm going to save up for one. At that price I can afford to buy a new one if it breaks after 6 months.

 

Well done at WP champs btw, hope they sort out the results - what a mess.