Reply To: Chain worn out – few question regarding upgrade to 520. Jun 11, 2025 at 11:18 AM #19681 Maciek👤 Member🖊 Topic Author Topics: 6Replies: 27Country: PolandBike Model: Hyosung GT125 Naked Comet Thank you, Marcel, for your reply, but I think I still have more questions on this topic, so I have sent you an email via the ‘contact’ tab.
