theboxers
TheBoxers on Cycle Sim sw
- Location
- OTC (on the couch)
The first CG this month is going to hurt me as there is a long undulating section leading to the downhill. I doubt I will do very well
Team BKool CycleChat
- Thread starter Peteaud
- Start date
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Well, I don't know how to break this to you, but despite the appearance of the profile there's a bloomin great uphill at the start -quite steep in places too! Most of the down was in blue virtual speed so I was just pedalling to ensure I got a good workout, although I did put in some big efforts to get the speed up in the less steep downhill sections.
Would be an interesting one to do live with others....
For "undulating" read definitely uphill!The first CG this month is going to hurt me as there is a long undulating section leading to the downhill. I doubt I will do very well
I'm planning to do it live Thursday, baring any unforeseen circumstances, so hopefully there will be a few of us. Will need to get a head start then on @theboxers before the downhill starts
I did read a blog post from Zwift explaining how they set the software up for the Bkool pro, along with other smart trainers - they used the trainers in zwift and compared with a power meter and adjusted the algorithm to suit each trainer. I was impressed with their openness as they explained the tyre width and tyre pressure etc. used in their calibration.
Obviously something's not right though based on Whorty's and several others experience, although personally I didn't have that kind of experience myself with my bkool pro on Zwift - I was generating lower watts than whorty did in zwift. Makes me wonder if it's some kind of hardware issue with some pro units not applying the required resistance for some reason?
Strange thing is I don't get it all the time. Twice now I've had super powers, but not every time. Last week it was feeling OK in the C race, this time I was definitely showing too much power. The difference (apart from tyre pressure) was this week was a flat course with no hills and last week there were a couple of lumps where I definitely felt the resistance kick in hard. Makes me wonder if the flat roads the resistance isn't changing on the trainer so when I go from say -1% to +1% the resistance is the same, I push more watts and it suddenly gives me more power. I am of course just clutching at straws!
It is probably something like the software tells the trainer to apply a certain amount of resistance, but for some reason it doesn't apply enough. Because the resistance is lower than it should be this allows you to go faster, and then the watts are reported assuming the resistance is correct - which obviously means they are higher than they should be
Tyre pressure does make a difference, but not to the extent you're seeing
Randyberlin
Guru
- Location
- Sitka, Alaska
My power is pretty consistent between Zwift and BKOOL. The watts are a lot lower since the last BKOOL upgrade a while back. I think they are closer to reality.
I did the CG 1 and after the first 5 miles uphill I took it easy on the downhill so I had to stop early because I was going to be just over 30 minutes and my FTP expired.
I did the CG 1 and after the first 5 miles uphill I took it easy on the downhill so I had to stop early because I was going to be just over 30 minutes and my FTP expired.
AAAC 76C
Large Member
- Location
- LIVING THE DREAM
I agree with Bridgy.
I think BSims 'inertia' bolt on it nothing more than a delay.
If you are going great guns on the flat and hit an incline there will be a delay in resistance kicking in and if the hill is short enough and you commence a descent or flat before resistance kicks in it just misses it out hence you climb at the same speed as a flat.
I'm not sure if it grants you extra power for your speed and incline but you can certainly bat along like you are on fire.
The faster you go the longer the delay so the more you are gifted, it's almost a double unfairness against slower riders who in turn will be slowed by the ascent that you skipped over.
AAAC 76C
Large Member
- Location
- LIVING THE DREAM
Probably because they have done so many bolt-ons in thier trainer FW they can't work out what it does now either.
AAAC 76C
Large Member
- Location
- LIVING THE DREAM
It's all explained here in one simple formula:
Shyte the upload was too big
Shyte the upload was too big
bobinski
Legendary Member
- Location
- Tulse Hill
That's sounds right. My experience was that as Cadence dropped the bkool pro produced similar power output to the NEO. This meant it was closer to the neo going up anything over 4%( once initial Cadence/momentum from flat to incline had fizzled out )and almost identical on long inclines above 4%. I wonder if this would be the case with a stronger rider spinning rather than grinding up such inclines.
Don't forget in Zwift if you set the trainer "difficulty " at 50% you spin more for same power output/speed and it might mean that the way bkool power output is interpreted is further exaggerated? Whorty- you at 50 or 100% if less than 100 perhaps but it at 100?
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Breedon
Legendary Member
- Location
- Long Eaton, Nottingham
The only problem with a roller is wheel slip, and you can't stand out of the saddle with out losing some power and the chance of wheel slip.
With direct drive you have none of that on a sprint I can put down over 7 w/kg in power, stand up and carry on putting down the power, climbing hills is a joy and not a frustration.
Yes they do cost more but it is well worth the money no matter what the price and I'm glad I got it, and I would highly recommend any direct drive.
Paul fairly kicked my 4rse down that hill so I'm wondering just how much weight he put on this summer. Too many cakes and beers I would think.
