This heavy duty chain plugs into the Kryptonite Ring Lock system, locking down both your wheel and bike to a bike lock.

Features

• 9mm PLUG-IN CHAIN to be used with either retractable or non-retractable ring lock
• Ring lock and plug-in chain PREVENTS ROLL, RIDE, AND LIFT away theft
• Plug-in options also include a 5.5mm chain and a 10mm cable
• Kryptonite and AXA ring locks/plug-in options are compatible