If you require more lockrings for your Centerlock disc brake rotors, each set contains one pair of lockrings, one for both the front and rear wheels.
*Note: In order to install these lockrings, you need to use an external bottom bracket tool with a major diameter of 44-45mm and a minor diameter of 42.7mm. We recommend the Shimano TL-FC32 or the Park Tool BBT-9.
