If someone is on a bike, they are not in a car adding to the traffic around me.
Bikes don’t use parking lots, more parking stalls available for me to park my car.
Less demand for gas allows prices to come down.
Bikes don’t cause as much wear and tear on the roads making them last longer.
Bike lanes and paths are good, they take the bikes off the main traffic lanes and out of my way.
Bike paths cost a fraction per mile compared to roads. Expanding more road lanes causes construction delays. More bike paths equals shorter construction season hassles and lower taxes because less of my tax money is spent on expanding roads.
Bikers pay more taxes (general fund) per mile for the roads they ride on (a large chunk of the general fund is used to build roads. Motorist taxes don’t cover the whole cost of road infrastructure, thus the general fund makes up the difference) Subsidizes the smaller amount per mile I pay for my car.
Bike riders are healthier, lowering my insurance premiums.
Bike riders use more local shops and stores giving me more eating, entertainment and shopping choices.