Twinpack krytolok s2 mini 120cm flexcable kryptonite twinpack krytolok s2 mini 120cm flexcable a complete security system in a handy twinpack use the krytolok with its 13mm hardened steel shackle to secure your bike to an immovable object and then use the flexcable to secure wheelsaccessories the anti rattle bumpers reduce the noise whilst in transit 2 keys included