Originally Posted by
MNBikeguy
That's a rather broad statement. You need to find a new LBS.
I've given up because, IME, their all the same. Besides, I'm not much interested in finding the needle in the haystack because my main attraction to cycling is that it allows me to be more self sufficient.
Originally Posted by
tatfiend
Per info I have read in "Bicycling Science" and in the IHPVA journal the poster is correct. Rubber tires do give higher rolling resistance in cold weather. I suspect that it is a matter of changing the flexibility and durometer of the rubber.
Yup, I also saw a set of amateur measurements posted somewhere online; PSI was kept constant, but rolling resistance went up, which I'm inclined to believe because the casing of my tires feel stiffer as they are chilled and they generally just impress me as being more like cheap high RR tires.
Besides, is it so surprising that rubber gets more supple as it is warmed, thus, reducing RR?