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bobinski

Legendary Member
Would still prefer 7pm but just for the reason I don't like cycling later in the evenings!! Really prefer to do it as soon as I get home to get it done, so I can kick back for the rest of the evening, but that's just personal preference.

Exactly the same for me Rick. I will ride late like on Tuesdays but when it's not a league run I usually start at 5:30 or 6pm so I can relax the rest of the evening.

Bloody admins and their need to relax in the evening...

Alright, I will bust a gut for 7 when i can but it is likely to affect my bkool performance so can you lovely admins allow me to reduce my weight a little to even things out:okay:
 
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theboxers

TheBoxers on Cycle Sim sw
Bloody admins and their need to relax in the evening...

Alright, I will bust a gut for 7 when i can but it is likely to affect my bkool performance so can you lovely admins allow me to reduce my weight a little to even tings out:okay:
Don't lower it too far or you'll get deducted power. In the weight handicap I get 20-30 less bkool watts than my power metter, at my normal weight I get 20-30 more bkool watts :scratch:.
 

BILL S

Guru
Bloody admins and their need to relax in the evening...

Alright, I will bust a gut for 7 when i can but it is likely to affect my bkool performance so can you lovely admins allow me to reduce my weight a little to even things out:okay:

Bob I can confirm that the admins will allow you to reduce your weight slightly to compensate you for having to be on time.

As you are 78 kg now, we will allow you to ride at 10kg less than that on Tuesdays handicap race.
 

bobinski

Legendary Member
Bob I can confirm that the admins will allow you to reduce your weight slightly to compensate you for having to be on time.

As you are 78 kg now, we will allow you to ride at 10kg less than that on Tuesdays handicap race.

Bill, I am back to 75 kg now, honest.

But I find myself somewhat suspicious of your generosity. Ummh....( thinks about what theboxers said...checks tuesday handicap weight..) ...No, leave it as it is. A very generous offer there Bill:tongue:
 

BILL S

Guru
Tonight's Chaingang race is called Training Loop and will start at 7pm with 10 mins warm-up.

Any newbies joining us tonight should join the ride from the Live tab. If it's hard to find there (as can sometimes be the case) then search using the filter by either part of the ride name, or the name of the starter (me). If you start near 7pm then you will have a chance to get a decent warm-up. Make sure your rear wheel is not moving with about 10 seconds to go and do not start pedalling until after the countdown reaches zero. Then just ride as fast as you can to the end.
 

gbrown

Geoff on Bkool
Don't lower it too far or you'll get deducted power. In the weight handicap I get 20-30 less bkool watts than my power metter, at my normal weight I get 20-30 more bkool watts :scratch:.

Bkool power doesn't really matter though does it, as it's just a backwards calculation from the speed - it's all about the SPEED!! :crazy:

Since the power displayed in this scenario is a calculation from your speed and the resistance requested of the turbo, and it is lower than your power meter is reading, that would suggest that the resistance applied is actually higher than the simulator required, i.e. the simulator is assuming a lower resistance and calculating a lower power than the trainer is applying and the power meter is actually observing.

30-32 Kg is very very low weight and it is not that surprising that the trainer/simulator are not well calibrated at this level.

At a much higher weight, the power calculation is higher than actually measured, suggesting that the trainer is failing to apply the resistance level requested of it by the simulator. This makes sense, as at higher weights and therefore higher resistance levels, it is likely that the trainer is struggling to generate enough magnetic braking.

So although it is only the speed that matters, the power displayed does suggest that you are suffering higher resistance than the simulation should require, and are therefore working harder to get that speed than you should have to.

The Handicap will have taken this into account as it is set from the bkool calculated power, which if it reads low will result in a lower weight handicap! :thumbsup:

EDIT: Perhaps in reality it is not practical to have a handicap weight as low as 30-32 Kg, and you are gaining little benefit from this. Perhaps we should set you at something like 50 Kg? One way to try this is to do the runs at a range of weights and see at which point your times start to lengthen measurably?

Geoff
 
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bridgy

Legendary Member
Since the power displayed in this scenario is a calculation from your speed and the resistance requested of the turbo, and it is lower than your power meter is reading, that would suggest that the resistance applied is actually higher than the simulator required, i.e. the simulator is assuming a lower resistance and calculating a lower power than the trainer is applying and the power meter is actually observing.

30-32 Kg is very very low weight and it is not that surprising that the trainer/simulator are not well calibrated at this level.

At a much higher weight, the power calculation is higher than actually measured, suggesting that the trainer is failing to apply the resistance level requested of it by the simulator. This makes sense, as at higher weights and therefore higher resistance levels, it is likely that the trainer is struggling to generate enough magnetic braking.

So although it is only the speed that matters, the power displayed does suggest that you are suffering higher resistance than the simulation should require, and are therefore working harder to get that speed than you should have to.

The Handicap will have taken this into account as it is set from the bkool calculated power, which if it reads low will result in a lower weight handicap! :thumbsup:

EDIT: Perhaps in reality it is not practical to have a handicap weight as low as 30-32 Kg, and you are gaining little benefit from this. Perhaps we should set you at something like 50 Kg? One way to try this is to do the runs at a range of weights and see at which point your times start to lengthen measurably?

Geoff
I think that's just the long version of what I said! :okay:
 

theboxers

TheBoxers on Cycle Sim sw
Bkool power doesn't really matter though does it, as it's just a backwards calculation from the speed - it's all about the SPEED!! :crazy:
That is correct. But if you use the bkool readings to gauge your effort and are wondering why you blow up so much quicker at the lighter weight. You now know why.

The first few weight league rides I did at the lower weights were massive fails for me until I worked out what was going on :cursing:. I thought I was just trying a little harder going into the amber . When I was going through the red and into the black :surrender:and then not going anywhere from half way due to having no go left in the legs :cursing:.
 

theboxers

TheBoxers on Cycle Sim sw
Snip

EDIT: Perhaps in reality it is not practical to have a handicap weight as low as 30-32 Kg, and you are gaining little benefit from this. Perhaps we should set you at something like 50 Kg? One way to try this is to do the runs at a range of weights and see at which point your times start to lengthen measurably?

Geoff
I'll dig out a nice short steep hill and have a play.
Edit to add
I will try to make it a variable gradient hill :bicycle:

See what the results are :secret: and maybe let you know :whistle:.

2nd Edit
I will use the power meter to gauge my effort and try to log the bkool power reading as I go.
 
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LBHIFI

Veteran
Don't lower it too far or you'll get deducted power. In the weight handicap I get 20-30 less bkool watts than my power metter, at my normal weight I get 20-30 more bkool watts :scratch:.
About Bkool power, BePro power data from my last TT (picture here if anyone is interested https://www.facebook.com/1710151965...151965905974/1747084618879375/?type=3&theater) of the year says 314 watt. That is about 20 watt less than the Bkool watts I did in the last weight handicap.
This was a flat TT and had a fair amount of turns, so compared to a mountain stage where you can put on a constant pressure for the whole duration of the stage, I would expect lower watts for the flat stage.

So it looks like my Bkool is pretty much spot on when going uphill, but the last few flat stages I have averaged about 400 watt, and that is of course far from reality. If it happens again tonight, I have been adviced by Bkool to send an error report.
 
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