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Roller noise(3 posts)

Roller noisejaybird
Jan 14, 2003 10:05 AM
Does anyone have an explanation for the squealing nosie that my rollers make. I don't really remember this in years past. I have relatively new conti gp's on. It seems to be comming more from the front tire than the back. I am also getting the steady hum from the back, so I don't think it is from an uneven pedal stroke...

also, how do speeds on rollers compare to those on the road?
re: Roller noiseSpunout
Jan 14, 2003 10:24 AM
Wipe your tires/rollers off, probably some manufacturing wax/lube all over them. Mine don't squeal, I use Michelins on Tacx rollers.

Also, pump up the pressure at least 105 psi.
re: comparable speeds -- only you and your HR know, andbill
Jan 14, 2003 10:38 AM
your HR isn't really sure (because you can experience cardiac drift with the higher temp's of indoor training, I've always heard, meaning that your HR may be a couple of percent -- maybe as much as 5% -- higher).
Too many other variables. Roller size. Bearing quality. Belt friction. Who knows? Do you pump up your tires to the same pressure?
You have to go with perceived effort. I have to say, with my Kreitler (standard) rollers and the headwind unit, when I set the headwind for a pretty still day, (I think it may be like a 2 mph wind), I feel that I have to work harder than on the road to maintain 18 mph. Without the headwind unit, 30 mph is pretty darn easy. I've heard that the same effort on the rollers is worth twice the road time, because you don't coast or stop, but I don't know about that.