lancuch zabezpieczajacy do blokady tylnego kola kryptonite 055cm x 120cmThe Kryptonite Ring Lock (Retractable) bicycle lock mounts to the rear wheel and is primarily intended for Dutch and city bikes. It is designed to prevent it from accidentally closing while riding. A 5. 5mm thick chain is included. The 5. 5mm thick chain can be used with both ring lock versions. Ring lock and chain prevent the bike from rolling, making it impossible to ride or carry The lock also fits a 9mm thick chain or a 10mm thick cable.