Oh and regarding service you mentioned... I'm always helping friends with simple bike maintenance like adjusting brake pads and cables or replacing, replacing a chain, etc. If you have local good friends who are serious bike heads, meaning they do their own maintenance instead of sending to the bike shop, you might get help. If the chain is not rusty and looks fairly new in appearance, doesn't skip on the cogs, should be fine. Chains on amazon are cheap, especially for 6 speed. Key with brake pads is that the rubber is not so old that it is hard or glazed so no grip on the rims, adjusted properly to meet the rims, and cables adjusted properly, as well as the angle of the brake handles (up/down) to your preference.