Yesterday as I was arriving from a ride my neighbor asked if I fixed bikes and if I would fix his . I was given two bikes, one newer mountain bike and one older bike. He told me whatever it will cost, to fix them. I am not sure what to charge! The parts I had to buy [chain, tube, cable kit] was 20$. The newer bike needed a tube which I had, and he wanted taller handlebars which I had. I spent about 2 hours on the newer bike and about 3 hours on the older bike. I am thinking of just doubling my cost, 40$, yet I know it would of cost 100$+ for the shop to do it.
So. . . what should I do fellow Foosters?