General Discussion Triathlon Talk » Determing miles for spin class or trainer ride Rss Feed  
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2008-03-18 2:00 PM

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Subject: Determing miles for spin class or trainer ride
How do you determine how many miles you rode in a spin class or on a trainer? I've been spending more time indoors on the bike this year. How many miles do you put down per hour?



2008-03-18 2:02 PM
in reply to: #1278638

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Champion
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Subject: RE: Determing miles for spin class or trainer ride
For the trainer I have a rear wheel sensor that I use.  I think it over estimates but I go with it.  For spin class you could always use what you generally average on the road X the amount of time in class.  Or you could log as sports minutes under trainer ride.
2008-03-18 2:04 PM
in reply to: #1278638

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Melon Presser
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Subject: RE: Determing miles for spin class or trainer ride

CYCLISTtuRUNsTRI - 2008-03-18 2:00 PM How do you determine how many miles you rode in a spin class or on a trainer? I've been spending more time indoors on the bike this year. How many miles do you put down per hour?

There's really no consistent way to do this--for this reason I log my cycling in time rather than distance (although I make sure to know distances for long rides to ensure proper training to a distance, since that's what races are marked in).

If you get a bike computer ($20 or so for the cheapies), that will register miles on your trainer.

Then, you could pick what seems to be an average distance that you manage to cover on an average ride on average terrain, and just apply that to time you spend doing indoor cycling.

2008-03-18 2:05 PM
in reply to: #1278638

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Master
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Subject: RE: Determing miles for spin class or trainer ride

I have a $35 cyclocomputer on my bike that measures speed, cadence, distance, time, avg speed, etc.  It's always on the bike, whether on the trainer or outside.  If you figure out with the cyclocomputer your average speed inside or out, you can use that as a rough estimate of distance in spin class.

Brian

2008-03-18 2:09 PM
in reply to: #1278638

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Master
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Subject: RE: Determing miles for spin class or trainer ride
Thanks for the quick replies. I use my Polar to determine speed, distance. The sensor is mounted on the front wheel. From now on I'll estimate the distance covered and add that into the log.
I've only been logging time instead of distance for the bike. It just drives me crazy to see low bike mileage on my training log. Now if I can just get past the legalistic side me that has to have an exact number it will be okay.
2008-03-18 2:18 PM
in reply to: #1278638

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Pro
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Subject: RE: Determing miles for spin class or trainer ride
I know that if I ride a flat course for about an hour to 1 1/2 hours I can maintain 20mph at an average heart rate around 130-135.  Not to complicated, but that's what i do.  If I spin for an hour and have an average at or above 130 it's 20-miles.  If it's lower, than the miles are lower.  I'm sure somebody will respond how lame this is.  But really, the only person that I need to justify my mileage to is myself...so it works for me.

Edited by rayd 2008-03-18 2:31 PM


2008-03-18 2:19 PM
in reply to: #1278638

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Houston, TX
Subject: RE: Determing miles for spin class or trainer ride
stop on the way home from work and get some plastic tie wraps and move the sensor to the rear and then the magnet from the front to the back wheel.  you'll be set up and logging those miles in less than half an hour. 
2008-03-18 2:20 PM
in reply to: #1278657

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Cycling Guru
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Subject: RE: Determing miles for spin class or trainer ride
Cateye Astrale 8 from EBay for $27 shipped ..... at least when I've bought them they are around that.  Rear wheel sensor and cadence so I no how fast I've ridden and how "far" based on that.
2008-03-18 2:22 PM
in reply to: #1278638

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Subject: RE: Determing miles for spin class or trainer ride
I don't have an answer for miles - but this may help you feel a little bit better -

A bike racer / spin instructor told us that for winter training, if we kept a steady pace through class, that we should add 15 minutes per hour for our training logs - since we don't have downhills, stop signs, traffic, or stoplights.

2008-03-18 2:23 PM
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Champion
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Subject: RE: Determing miles for spin class or trainer ride

CYCLISTtuRUNsTRI - 2008-03-18 3:00 PM How do you determine how many miles you rode in a spin class or on a trainer? I've been spending more time indoors on the bike this year. How many miles do you put down per hour?

I guess the answer is zero miles, unless when you get off the spin bike it is in a different place...

2008-03-18 2:24 PM
in reply to: #1278667

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Houston, TX
Subject: RE: Determing miles for spin class or trainer ride

CYCLISTtuRUNsTRI - 2008-03-18 2:09 PM  It just drives me crazy to see low bike mileage on my training log. Now if I can just get past the legalistic side me that has to have an exact number it will be okay.

 i understand that sentiment.  i can't even log it if i don't have a distance.  it drives me insane as well so don't feel alone.  i don't even try to get past it anymore.  i can't wait to see if you'll attempt the do-it-yourself sensor move, that'll tell just how badly you want to know those miles.



2008-03-18 2:28 PM
in reply to: #1278699

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Sensei
Sin City
Subject: RE: Determing miles for spin class or trainer ride

rayd - 2008-03-18 12:18 PM I know that if I ride a flat course for about an hour ro 1 1/2 hours I can maintain 20mph at an average heart rate around 130-135.  Not to complicated, but that's what i do.  If I spin for an hour and have an average at or above 130 it's 20-miles.  If it's lower, than the miles are lower.  I'm sure somebody will respond how lame this is.  Bureally, the nly person that I need to justify my mileage to is myself...so it works for me.

I do the exact same thing.  I usually underestimate my miles by a couple just to not inflate the totals.  The way I see it, my heart only knows how fast it's beating and for how long.  My heart doesn't know squat about miles.  So as long as I'm doing the time in my right HR zone, I'm good.

IMO, the only thing good about logging miles is to have some kind of record to reflect on or brag about.  I'm sure I probably have 10%-20% more miles in reality than shown in my logs - but that's not a big deal to me.

2008-03-18 2:37 PM
in reply to: #1278638

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Sensei
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Subject: RE: Determing miles for spin class or trainer ride

BTW - having a computer sensor on the rear wheel of your bike on the trainer does not work IMHO.  So save your money if your are going to buy and extra.

On trainers, you can set the resistance from easy to hard.  If you set it too easy, you can put your bike in the big gears and get the wheel flying at a certain HR - as if you are doing 30 mph.  OR you can set the resistance to something really hard and then push a small gear at the SAME HR  - and it will look like you are doing 7 mph.

So if you do the same amount of work (consitant HR for 1 hour, let's say).  The first example has you going 30 miles, the second is 7 miles.  So which is right?

Taking your average speed based on typical road conditions when you ride outside and assuming you are doing the same pace if you are riding at approximatly the same intensity is probably more accurate IMO.

2008-03-18 2:52 PM
in reply to: #1278756

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Cycling Guru
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Subject: RE: Determing miles for spin class or trainer ride

Aikidoman - 2008-03-18 3:37 PM BTW - having a computer sensor on the rear wheel of your bike on the trainer does not work IMHO.  So save your money if your are going to buy and extra.

I'll completely disagree with that one ....... same logic behind running on a treadmill .... would you tell people not to log the miles they run there???

Yes, the onus is on the rider to ensure that they get as close to road feel as they can.  For me that is the hardest setting for the resistence which based on my experience translates very well to the road, so I am fairly confident in putting the miles in the log accordingly.  In fact on the hardest setting I actually am a tick slower than I would be on a similarly flat route on the road with light winds, so it is even more of a confidence booster when I can spin a 39 x 15 at 100+ rpms for a 1/2 hour easily (20.5 mph or so).

2008-03-18 3:06 PM
in reply to: #1278795

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Sensei
Sin City
Subject: RE: Determing miles for spin class or trainer ride
Daremo - 2008-03-18 12:52 PM

Aikidoman - 2008-03-18 3:37 PM BTW - having a computer sensor on the rear wheel of your bike on the trainer does not work IMHO.  So save your money if your are going to buy and extra.

I'll completely disagree with that one ....... same logic behind running on a treadmill .... would you tell people not to log the miles they run there???

Yes, the onus is on the rider to ensure that they get as close to road feel as they can.  For me that is the hardest setting for the resistence which based on my experience translates very well to the road, so I am fairly confident in putting the miles in the log accordingly.  In fact on the hardest setting I actually am a tick slower than I would be on a similarly flat route on the road with light winds, so it is even more of a confidence booster when I can spin a 39 x 15 at 100+ rpms for a 1/2 hour easily (20.5 mph or so).

First response, I didn't say NOT to log miles, there are just more accurate ways for a beginner to estimate IMO.  Also, my plan has me running based on HR and time.  So in reality, it probably doesn't matter to me if I log miles either (but I do).  I can set the treadmill at 0% incline and run faster/farther in an hour at a given HR than if I set it at 15%.  So which is right?  I have found that 1%-2% seems to simulate a flat outdoor conditions.

Second response - I think I mentioned that if you tune your trainer to reflect outdoor conditions, you would have decent numbers, like you have done.  But a beginner may not know how to do that...  Just saying....



Edited by Aikidoman 2008-03-18 3:08 PM
2008-03-18 3:14 PM
in reply to: #1278638

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Subject: RE: Determing miles for spin class or trainer ride
I don't feel the need to log miles from trainer rides. Minutes are good enough for me, as long as I get enough of them.

I agree that trainer rides are in many ways better than road rides because you don't have to stop for lights, traffic, baby ducks, etc. That drives me nuts if I don't get out early enough.


2008-03-18 3:28 PM
in reply to: #1278638

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Master
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Subject: RE: Determing miles for spin class or trainer ride
Maybe I should just ride outside on my bike!
2008-03-18 3:51 PM
in reply to: #1278638

Elite
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Subject: RE: Determing miles for spin class or trainer ride

 

Easy, your distance traveled is zero.

 

2008-03-18 3:55 PM
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Cycling Guru
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Subject: RE: Determing miles for spin class or trainer ride

CYCLISTtuRUNsTRI - 2008-03-18 4:28 PM Maybe I should just ride outside on my bike!

Yes .. always the best method!!

2008-03-18 4:03 PM
in reply to: #1278638

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Subject: RE: Determing miles for spin class or trainer ride
I'm a Spin teacher, and we just got new bikes that have computers on them that track miles, rpms, time, etc. It seems that most classes end up at about 20 miles per hour-long class. And I usually log my Spin classes under bike rides on my log, because for six months out of the year, that *is* my biking. Where I am in Colorado, we sometimes don't see pavement for months at a time, but I'm still using my cycling muscles and getting time in the saddle. Not the same at all as being outside, I know, but it still makes me feel better about my training to log it as such. :-)
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General Discussion Triathlon Talk » Determing miles for spin class or trainer ride Rss Feed