Some people sweat at different rates than others, your bike has very little to do with it, your weather would definitely cause an issue too. If you are sweating a lot simply take some baby wipes with you and then wipe yourself down real well in the restroom at work and apply underarm deodorant, unless you sweat too while at work than apply a antiperspirant instead of deodorant so as not to get those wet stains on your shirts; but if you don't sweat while working use a deodorant instead because.