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BILL S

Guru
Location
London
Thanks AAAC
 

bobinski

Legendary Member
Location
Tulse Hill
Watching todays ride and somethings not right following the update. Andy is travelling up 12% gradients at 60khr for long periods of time with a power of 900w plus and then the watts figure disappears as if recognizing a problem yet the speeds dont show blue.See around 13.2 and 14.7. AAAC and Bill are riding at less than half Andy's speed on the same slopes. And at far less power.At other times Andy's impressive power and speed seem perfectly reasonable especially given his recent rides.
 

CXRAndy

Guru
Location
Lincs
i dont know what went wrong there, for the first four miles, it was hard work just keeping in touch with AAAC and Bill. AAAC giving me a tow for sections-cheers. Then when the first dip arrived my resistance became easier and i was able to cycle in top gear producing 1000watts uphill, that was stupid. i got off the bike to see if i was still plug in- ok

I have saved it for you lot to assess, dont put it in the league though
 

bobinski

Legendary Member
Location
Tulse Hill
i dont know what went wrong there, for the first four miles, it was hard work just keeping in touch with AAC and Bill. AAAC giving me a tow for sections-cheers. Then went the first dip arrived my resistance became easier and i was able to cycle in top gear producing 1000watts uphill, after that it was stupid. i got off the bike to see if i was still plug in- ok

I have saved it for you lot to assess, dont put it in the league though

it was bonkers to watch Andy:wacko: I had japanese for lunch and though i had drunk too much sake^_^
 

AAAC 76C

Large Member
Location
LIVING THE DREAM
i dont know what went wrong there, for the first four miles, it was hard work just keeping in touch with AAAC and Bill. AAAC giving me a tow for sections-cheers. Then when the first dip arrived my resistance became easier and i was able to cycle in top gear producing 1000watts uphill, that was stupid. i got off the bike to see if i was still plug in- ok

I have saved it for you lot to assess, dont put it in the league though

As said many times before Bkool does not measure power, it is calculated from your speed, weight, incline etc so if your backwheel is going 40kph up a steep hill you will get a huge power reading.
If you have no resistance then your magnetic brake has failed either in the magnets away from flywheel condition or the conductive ring on the flywheel and the magnets are not moving relative to each other because one has become detached or the flywheel is slipping on the spindle.
If you maintain a constant speed and power but your cadence is not static and the speed continues even if you stop pedaling you have lost power to the turbo trainer.
Look at my session today. I switched my turbo off with 800m to go and the power and speed are pan flat.
Switch your turbo back on and do a short ride to see what happens.
 
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BILL S

Guru
Location
London
Great Finish Bill and AAAC:okay:

Well it was great to finish, that's for sure. I wasn't so happy with that ride as the blue numbers were too easy to take advantage of. One of them just kept going at the same speed as the previous much lesser gradient and was like a slingshot that just kept on giving. The only way I could stop it was by using the brake to come to a dead stop. I wasn't sure if Bridgy and AAAC had had the same benefits so I was reluctant to go as quick as I could up the hill and at the end I think it was a competition between me and AAAC to see who could go the slowest. I don't think I could have surfed the blue anywhere near as quick ass Andy did it though.
 

bridgy

Legendary Member
Location
Cheddar
I didn't have anything like that Bill. Uphill speeds did go blue but as I said earlier, this didn't seem to mean anything as the speed dropped (or increased) instantly to match the power I was putting in- no idea what difference the blue was meant to make!
 

AAAC 76C

Large Member
Location
LIVING THE DREAM
Well it was great to finish, that's for sure. I wasn't so happy with that ride as the blue numbers were too easy to take advantage of. One of them just kept going at the same speed as the previous much lesser gradient and was like a slingshot that just kept on giving. The only way I could stop it was by using the brake to come to a dead stop. I wasn't sure if Bridgy and AAAC had had the same benefits so I was reluctant to go as quick as I could up the hill and at the end I think it was a competition between me and AAAC to see who could go the slowest. I don't think I could have surfed the blue anywhere near as quick ass Andy did it though.

As I said to Bridgy I had a huge slingshoty moment on Thursday going into the final climb. I deliberately powered into the climb and my speed dropped really slowly in comparison to Bridgy and I actually caught and passed him whilst it was occurring so I backed off and let him catch me again to try and make up for it all be it meant I was resting (comparatively).
This whole blue number thing is all over the place. I think they need to go back a few steps to the resistance = gradient start point and have a go at re-introducing realism again but differently. It seems to be that they have in terms of database's created something not knowing what they wanted out of it and then bolted on extra's to obtain the results they wanted. The more bolt on's you add the more unpredictable and un-flexible the database becomes.
 

AAAC 76C

Large Member
Location
LIVING THE DREAM
i dont know what went wrong there, for the first four miles, it was hard work just keeping in touch with AAAC and Bill. AAAC giving me a tow for sections-cheers. Then when the first dip arrived my resistance became easier and i was able to cycle in top gear producing 1000watts uphill, that was stupid. i got off the bike to see if i was still plug in- ok

I have saved it for you lot to assess, dont put it in the league though

Andy, as you are not 'my friend' I cannot see your stats.
Send me a friend request and I'll accept it and then have a look.

Doh! or I could just click on your name in the league standings and go to your home page.

I had a look at your stats and have one question, do you use a cadence sensor?
 
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BILL S

Guru
Location
London
I didn't have anything like that Bill. Uphill speeds did go blue but as I said earlier, this didn't seem to mean anything as the speed dropped (or increased) instantly to match the power I was putting in- no idea what difference the blue was meant to make!

Hmmm strange. I wonder if it's related to firmware. I still haven't been able to get the latest or any update ever. I had a go twice today to update it but it timed out and said the firmware was not updated. Maybe the latest update involves going back to basics as AAAC has discussed in the earlier post, which would explain why you haven't had blue number weirdness as you have updated firmware.
 

AAAC 76C

Large Member
Location
LIVING THE DREAM
Well it was great to finish, that's for sure. I wasn't so happy with that ride as the blue numbers were too easy to take advantage of. One of them just kept going at the same speed as the previous much lesser gradient and was like a slingshot that just kept on giving. The only way I could stop it was by using the brake to come to a dead stop. I wasn't sure if Bridgy and AAAC had had the same benefits so I was reluctant to go as quick as I could up the hill and at the end I think it was a competition between me and AAAC to see who could go the slowest. I don't think I could have surfed the blue anywhere near as quick ass Andy did it though.

Bill, I was just trying to act as a carrot for you until about 800m from the end when I turned my turbo off to show what happens as I guessed that by the speed Andy went up all was not as it should be.

I have been thinking about your loss of power as the only mechanical thing I could thing of is that the conductive ring on your flywheel is de-bonding. This usually causes a grating noise but if it in the throws of de-bonding that may not be happening yet and the ring is rotating that bit closer to the magnets creating additional drag.
The effect may be more when you are moving slower with high watts as the magnets have too engage more with the conductive ring and so they will pull on the ring more.
Just a mad theory!
 

bobinski

Legendary Member
Location
Tulse Hill
As I said to Bridgy I had a huge slingshoty moment on Thursday going into the final climb. I deliberately powered into the climb and my speed dropped really slowly in comparison to Bridgy and I actually caught and passed him whilst it was occurring so I backed off and let him catch me again to try and make up for it all be it meant I was resting (comparatively).
This whole blue number thing is all over the place. I think they need to go back a few steps to the resistance = gradient start point and have a go at re-introducing realism again but differently. It seems to be that they have in terms of database's created something not knowing what they wanted out of it and then bolted on extra's to obtain the results they wanted. The more bolt on's you add the more unpredictable and un-flexible the database becomes.

Bkool is the only smart turbo whoose resistance/erg power cannot be controlled over ant+ fec in Trainer road and Zwift. TR have been expecting a major software update , presumably firmware, from Bkool which sounds like a complete rewrite and which is hoped will allow their software to realistically control resistance.We shall see.
 
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