Zwift Chat

[bobinski]

I could possibly hold onto Paul on the flats, but would be destroyed on the inclines, pretty much like the IOW

He is younger than me and you Bob, alot younger than you

Yeah, but I am like a fine wine, maturing nicely thank you

 

[berty bassett]

i've corked !

 

[bobinski]

i've corked !

 

[bridgy]

I think the differences we see between the trainers varies on different terrain and based on what monte said, possibly between riders of different weights. I'm also pretty sure that the bkool behaves differently sometimes on different rides - sometimes being over generous and other times less so. I guess we're getting a taste of the difficulty the software developers have in accommodating all the different trainers and the way they behave.

It might be good if I could ride the same course as last night on the bkool either today or quite soon. A comparison over 50+ minutes is probably the most accurate because even comparing segments doesn't allow for whether some drafting etc was going on in one race and not the other - but over the whole race these things should even out a bit more.

 

[<Tommy>]

I think the differences we see between the trainers varies on different terrain and based on what monte said, possibly between riders of different weights. I'm also pretty sure that the bkool behaves differently sometimes on different rides - sometimes being over generous and other times less so. I guess we're getting a taste of the difficulty the software developers have in accommodating all the different trainers and the way they behave.

It might be good if I could ride the same course as last night on the bkool either today or quite soon. A comparison over 50+ minutes is probably the most accurate because even comparing segments doesn't allow for whether some drafting etc was going on in one race and not the other - but over the whole race these things should even out a bit more.

It would probably be better to do a ftp test on both turbos in my opinion.

The other big grey area is the difference between various pro units.

 

[bridgy]

It would probably be better to do a ftp test on both turbos in my opinion.

The other big grey area is the difference between various pro units.

That's a good point

 

[bobinski]

I typed out a response suggesting ftp on both but chose not to send it because I thought it would appear a little mean !

 

[<Tommy>]

I typed out a response suggesting ftp on both but chose not to send it because I thought it would appear a little mean !

Marie Curie might argue people have made bigger sacrifices in the name of science!

Seriously though it's probably not worth the effort... It would be pretty tough to expect Bridgy to be in the exact same form for both tests. And then what do we want to prove? I don't think you can trust the pro unit to give the same performance from one day to the next to be honest. And then the result would only be relevant to that particular unit as we can't say for sure that all the pro units perform the same...

Not trying to be a party pooper but we all knew when we bought the pro unit it wasn't very accurate. If you want accurate power readings then you need a proper power meter of some description.

 

[bobinski]

Marie Curie might argue people have made bigger sacrifices in the name of science!

Seriously though it's probably not worth the effort... It would be pretty tough to expect Bridgy to be in the exact same form for both tests. And then what do we want to prove? I don't think you can trust the pro unit to give the same performance from one day to the next to be honest. And then the result would only be relevant to that particular unit as we can't say for sure that all the pro units perform the same...

Not trying to be a party pooper but we all knew when we bought the pro unit it wasn't very accurate. If you want accurate power readings then you need a proper power meter of some description.

Dang,you start off suggesting you will bring beer to the party and get Paul drunk on post ride endorphins then you just bring common sense! Who needs that? You are right though. We all accept the pro over reads watts so let’s move on. Nothing to see or say here any more...

 

[CXRAndy]

Are we racing Tues/Thursday?
8pm Kiss on Tues.
6.30pm XRS on Thurs
Both Watopia hilly
I'll be in cat C

 

[bobinski]

Definitely Kiss for me Tuesday.
Thursday too early for me.

 

[LBHIFI]

Enjoyed that on Carlo's Neo - thanks guys, now I need to save up for one

It's hard to compare one ride vs what I did on the bkool the other day - different course for a start, plus some freewheeling and quite a lot of drafting today. I did the same London route on my bkool in March which is probably a better comparison. When I get a minute I will compare stats.

Either way, still felt bloomin hard work! First time I have used a real power meter so good to have some kind of benchmark

Strong riding there . Did Zwift award you with a new FTP?

 

[JLaw]

Are we racing Tues/Thursday?
8pm Kiss on Tues.
6.30pm XRS on Thurs
Both Watopia hilly
I'll be in cat C

Tuesday KISS EUR for me. Then I'm off to the Utah deserts with the family for a week... No real biking during that time :-(

 

[CXRAndy]

Strong riding there . Did Zwift award you with a new FTP?

He was awarded that on the Bkool Pro

 

[Whorty]

Marie Curie might argue people have made bigger sacrifices in the name of science!

Seriously though it's probably not worth the effort... It would be pretty tough to expect Bridgy to be in the exact same form for both tests. And then what do we want to prove? I don't think you can trust the pro unit to give the same performance from one day to the next to be honest. And then the result would only be relevant to that particular unit as we can't say for sure that all the pro units perform the same...

Not trying to be a party pooper but we all knew when we bought the pro unit it wasn't very accurate. If you want accurate power readings then you need a proper power meter of some description.

Saying that though, and not to be too argumentative, but I've been Googling and reading lots on other forums and there are similar concerns with the Neo and Kickr and the reliability of those numbers and speeds on Zwift. It seems fair to say that no trainer is truely accurate and even across the same brand there are differences. There is lots of negativity around the build quality of the Neo (especially the early builds) and the same for the Kickr (again, especially the first gen). I think most of us saw the same with the Pro and many of us I think returned our first ones to get a replacement.

There are too many variables at play to say one is better or more accurate than the other. Even when others have compared against power meters they have seen varying results, sometimes showing variation depending which power meter was being used (so not even power meters are the same and give the same results!).

As a number of others have said on other forums, just accept that it is nigh on impossible to get all the trainers to work the same way and be 100% accurate and just enjoy your cycling.

I'm happy that the differences between the Neo and the Pro are marginal - 7% on the units tested, and with Neo's considered to consistently under report watts by anything up to 2%. The Kickr is considered to be poor at descents and under report speed so @CXRAndy is at a disadvantage going downhill in Zwift compared to others!

Am I really that fast, and I really that strong? Not really relevant so long as I'm enjoying myself and gaining something from each ride and race