The kryptonite transit transport r chain frame bag is an innovative solution for carrying a chain lock on your bike the transit r chain bag allows you to easily transport your chain lock from a to b in the same way you would a u lock reinforced nylon material means long lasting use featuring 360 degree molle attachment locations allowing a flexible fit on different bike frames and rear luggage racks supplied with 5 attachment straps 4 standard length and 1 longer version for head