Roller wattage
Discussion
Somebody must have done this already, but I can't find it.
Has anyone plotted approximate speed/power for different sets of rollers?
For instance, what would the speed/power curve look like using a set of Elite Arion non-resistance rollers with decent clinchers (with, say, 100psi in them).
I know it will probably be inaccurate and fairly pointless, but it might be something to while away the boredom of training in the garage this winter.
Has anyone plotted approximate speed/power for different sets of rollers?
For instance, what would the speed/power curve look like using a set of Elite Arion non-resistance rollers with decent clinchers (with, say, 100psi in them).
I know it will probably be inaccurate and fairly pointless, but it might be something to while away the boredom of training in the garage this winter.
Here's a link to Trainerroad's explanation of Virtual Power (mapping roller/turbo speed > power).
http://www.trainerroad.com/virtual-power
It may not be ideal and those are virtual watts so not nearly as impressive as real ones but if you can get consistency then you can train effectively.
http://www.trainerroad.com/virtual-power
It may not be ideal and those are virtual watts so not nearly as impressive as real ones but if you can get consistency then you can train effectively.
okgo said:
Lots out there to suggest how good or bad the data is with various turbos in various states of use. Last
I heard when used to a Kurt turbo is was miles out. And as the unit warmed up it changed even more so.
Trainer road and a powertap is probably a good way to go.
This is exactly what I found with a Kurt turbo. I use Trainer Road with a Wahoo Kickr and that seems to be much betterI heard when used to a Kurt turbo is was miles out. And as the unit warmed up it changed even more so.
Trainer road and a powertap is probably a good way to go.
I signed up and I've been using trainer road. I like it, it's a very easy way of giving some shape to winter training.
The FTP test came out at 4.64w/kg (339w) which was slightly on the high side (decent 2nd cat on Coggan) but not far out of sync with proper SRM/ergo testing I've done previously.
BUT my 5 minute power is coming out at 450w (consistent 110rpm in 50/11, 36mph ish on the rollers) which equates to 6.4w/kg.
I've got no sprint and no ability in the hills, and 5 to 60 minute power has always been my best suit, but 5 minute power at 6.4w/kg is domestic pro territory on the Coggan chart. That leads me to conclude that the whole virtual power thing is b*llocks!
The FTP test came out at 4.64w/kg (339w) which was slightly on the high side (decent 2nd cat on Coggan) but not far out of sync with proper SRM/ergo testing I've done previously.
BUT my 5 minute power is coming out at 450w (consistent 110rpm in 50/11, 36mph ish on the rollers) which equates to 6.4w/kg.
I've got no sprint and no ability in the hills, and 5 to 60 minute power has always been my best suit, but 5 minute power at 6.4w/kg is domestic pro territory on the Coggan chart. That leads me to conclude that the whole virtual power thing is b*llocks!
Birdthom said:
I signed up and I've been using trainer road. I like it, it's a very easy way of giving some shape to winter training.
The FTP test came out at 4.64w/kg (339w) which was slightly on the high side (decent 2nd cat on Coggan) but not far out of sync with proper SRM/ergo testing I've done previously.
BUT my 5 minute power is coming out at 450w (consistent 110rpm in 50/11, 36mph ish on the rollers) which equates to 6.4w/kg.
I've got no sprint and no ability in the hills, and 5 to 60 minute power has always been my best suit, but 5 minute power at 6.4w/kg is domestic pro territory on the Coggan chart. That leads me to conclude that the whole virtual power thing is b*llocks!
Thing is the virtual power is entirely dependent on the variables you introduce in trainer use. Tyre pressure, resistance applied from tyre to the trainer etc. If you keep all those things in check and the same, then in theory you should be getting a constant output. Doesn’t really matter how high or low that output is, if its constant then you can train from it. I guess where people may get frustrated is translating those results onto an actual power meter on the road. The FTP test came out at 4.64w/kg (339w) which was slightly on the high side (decent 2nd cat on Coggan) but not far out of sync with proper SRM/ergo testing I've done previously.
BUT my 5 minute power is coming out at 450w (consistent 110rpm in 50/11, 36mph ish on the rollers) which equates to 6.4w/kg.
I've got no sprint and no ability in the hills, and 5 to 60 minute power has always been my best suit, but 5 minute power at 6.4w/kg is domestic pro territory on the Coggan chart. That leads me to conclude that the whole virtual power thing is b*llocks!
Ideal situation is using an actual power meter on a trainer/rollers with trainer road.
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