If you are taking about the round keys from Kryptonite, they were phased out well over a decade ago and even then, not all were opened easily. I could never open the three I owned at the time using the pen method.Take your mechanics advice with a grain of salt. Kryptonite and ABUS are the two leading companies for bike locks and they are for a reason.
The Lock Picking Lawyer has a YouTube channel where he just picks locks. I watch these because of the entertainment value but he is very good at what he does. Have a look at the lock he chooses for his own bicycle. More importantly listen to why he chose that particular lock. https://www.youtube.com/watch?v=SpVOTEOMRuE -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.