Originally Posted by
sbs z31
I have notice that as it gets colder here in MN my average speed is slowly decreasing. Is this normal? I should add that I have been cycling for only 5mos and average anywhere from 17.5mph-18.5mph on my 8mi commute but now it seems like I'm barely breaking 17mph avs.
Tire pressure? If you're filling up your tires indoors, they'll be a lot lower out in the cold. (Topping them off outside makes for a faster ride, but do bleed some off before bringing it back indoors.)