Are you slower on the trainer than on the road? I have a rear wheel speed sensor so I can track info on the trainer. My average speed is way slower than on the road in the same gears. So do I need to HTHU or is that normal?
I found this to be the case for myself as well. Of course this is speaking in generality. Last year I got a double wireless comp measuring both from the rear wheel, and based on average HR over a 2 hour ride, I go fewer fake trainer miles for the same effort as I do on flat tempo rides outside. (and that's even with a fan blowing at my back while I'm on the trainer)Hank Stamper said:Yes I'm slower on the trainer. And now that I've finally gotten out on the road I can say for sure that wasn't due to fitness decline. Road speed was more of less where I left off in December.....despite never coming close to that speed on the trainer. So Im sure I'm slower on the trainer as opposed to just being a slug during the winter.
Cadence and gearing are going to tell you a lot. Heart rate has a few limitations, but it's still useful. PE is a relative scale, but also useful.goat 834 said:Sounds good guys. I am using CTS videos. They go by cadence if not using power meter. Just making sure I am working out properly is all. I know based on my HR I am getting good training time in. Just not going real far is all.
claphands said:I don't have a PM, but I've used these equations and charts this winter to give me a rough idea of what I am doing.
http://thebikegeek.blogspot.com/2009/12/while-we-wait-for-better-and-better.html
http://www.fixedgearfever.com/modules.php?name=Roller_Tests&op=resistance.htm
In the end, I want to some how measure improvements in my training indoors - whether on the rollers or trainer. I find speed with a certain cadence for a specific amount of time i.e. 22mph w/ 100+ rpm for 10 mins to be helpful - with the above charts. I know there are many ways to "go" 22 mph on the rolllers/trainer by changing gear ratios and cadence but the power output is the same.
I do not try to relate any of the above to the road though.
This is where I have no data. I know the power curve chart tells me that 22 mph on my cyclops trainer is 307+ watts. Outside on a flat course with cadence 100+ I don't know what "speed" 307+ watts is other than PE. I maybe faster. I need (really want) a PM.CHT said:Interesting, and while I don't doubt the data, it runs counter to the general consensus in this thread that you go slower on the trainer for the same effort. A 19-20 mph average ride is much easier outdoors than on the trainer, but the relative wattage for both is close on the Kurt Kinetic curves (I ride a Kurt Road Machine).
Definately. I train outside in the garage. For the first 5-8 minutes it feels like I am pedaling squares until it warms up.Argentius said:To emphasize what others have said:
The speed that your wheel turns on a stationary trainer means nothing at all with respect to road speed
On basic magnetic trainers, the resistance is pretty much fixed. It takes, say, 250 watts, to overcome the max resistance. Beyond that you are only dealing with the wind and friction resistance, a pretty small number.
You could ride a cheap magnetic at a wheespeed that would produce 25mph on the road, or, 35mph, with maybe 10 watts' difference.
On a nicer progressive resistance trainer, like Saris' Fluid2 or Kinetics' Road Machine, it does take more watts to go faster, but, the numbers are only worthwhile in reference to that SPECIFIC trainer.
You also get some funny stuff where as the fluid heats up as you ride, the resistance changes...
goat 834 said:Definately. I train outside in the garage. For the first 5-8 minutes it feels like I am pedaling squares until it warms up.
Totally agree. Even with my fancy smancy Computrainer, I never even look at speed even though it is likely pretty close to on the road. It just doesn't matter.Argentius said:To emphasize what others have said:
The speed that your wheel turns on a stationary trainer means nothing at all with respect to road speed.............
For a flat road, no wind, 150 lb rider on a standard road bike, 25 mph is about 305 watts. If you can ride at 22 mph on the trainer but are unable to sustain that kind of speed outside, it's doubtful that your Cyclops numbers are right.claphands said:This is where I have no data. I know the power curve chart tells me that 22 mph on my cyclops trainer is 307+ watts. Outside on a flat course with cadence 100+ I don't know what "speed" 307+ watts is other than PE. I maybe faster. I need (really want) a PM.
Why can't you get the same setup? I've got a dedicated trainer bike so there is never an excuse for not wanting to fool with putting my bike on the trainer. It's just hop on and ride. Plus I'm not wearing good components out.DapottSci said: