Originally Posted by
cyccommute
How cold is it? Cold will make you ride slower. It usually has a 3 to 5 mph effect on my speed, depending on the temperature. Below 20F, it's just plain harder to ride. From 35 down to 20 is easier but I'm still slower than I am at 60, 70 or 80F.
Yes.. even on your best summer bike, you are going to be slower in cold weather. It's probably trying to push all that cold, dense air.