I bought a bike for $900 about 7 years ago. I ride to work every day (25km back and forth) and the maintenance have consisted of one tube and a few packages of

I bought a bike for $900 about 7 years ago. I ride to work every day (25km back and forth) and the maintenance have consisted of one tube and a few packages of lube for chain, probably around $50 in total. The tires need replacement but so far they hold up...