Left a bike outside on the balcony for couple of months. How to get rid of the rust?

[vadim26]

   

Is there a way to get rid of that rust or do I need to replace certain components?

More pics

[Papa Dom]

most of the rust is cosmetic, in my opinion. chain can be cleaned with wd40 or wiped and left in Evapo-rust for couple of hours. afterwards lube the chain and check if it is worn. did you test the shifting performance?

@Painkiller made a nice post about Evapo-rust and rusty bolts: https://forums.bikeride.com/thread-6262.html

[Painkiller]

as Long as it functions properly, just lube it and go. the key is to keep it lubed once in a while. A new chain with a quik link can be had for around 12 to 15 bucks if need be. I would opt for 1. if it works leave it alone and keep it lubed, 2. Buy a new chain because Evapo-rust will cost about as much as new chain.
What I see in the pic looks to cosmetic like mentioned above. The bike looks to be a user, not a show bike. You should be fine.