Do/can rollers generate more heat then the road?

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Permalink Reply by Jim on January 27, 2009 at 9:30pm

I dont know what everyone else thinks but when i train on the rollers i think i melt more than out side no matter how hot it is. I train in my garage at 50 degrees with a fan on me

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Permalink Reply by Jim "Niterider" on January 28, 2009 at 12:52am

I have a pair of the inside ride e-motion rollers and yes they do generate a lot of heat. When I ride them I have found a neat little trick. I get on the same gear that I would wear in the spring and ride in the garage or on the back patio outside. The heat escapes almost as fast as if you were riding on the road. Other neat trick is to place fans behind you and in front. This keeps everything cool. If it is too cold outside, than down in the basement watching t.v. To check roller temps you can buy at Sears an infrared thermometer in the tool department. I have measured temps as high as 190-200 F after riding for hours without using a fan. Using a fan drops the temp down to 140-155 F. Running outside the temps are between 40-70 F at 20 F air temps. You figure when you are out riding the rubber has to get pretty warm to hug the road and do its job. I would think over time the rubber expands too far and BooMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! You flat out. The rollers enhance this effect since the tire is cooked from the inside as oppesed from the outside. I have notice after a blow out, the tube is melted to the tire. Only place I can think that this may not apply is in the summer when the sun is hot and no one is ridding on rollers unless it is raining or something.

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Permalink Reply by Jamie on January 28, 2009 at 9:09am

I run a fan aimed at the rollers. kreitler killer headwind fan keeps me a little bit cooler... I usually ride when my place is really cold too.

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Permalink Reply by joe stein on January 30, 2009 at 9:43am

mark,

research (late sleepless night in a marin hotel) starting with Lennard Zinn, took me down a weird set of online links tells me, now, yes, riding indoors on a trainer does heat the tire more than pavement. has to do with the coefficient of friction of aluminum roller compared to pavement, compounded by the fact that contact patch between the metal is constant as opposed to the constant varying of tire patch over bumpy pavement. wow.

it was 70 degrees there, though.

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Permalink Reply by Julie Aberman (Hochstadter) on May 25, 2011 at 1:56pm

bump, just cause!

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