If you're reading this, you're wisely considering a Chris King PF30 bottom bracket for your road bike. And that means a long service life of silky smooth operation. However, if you're running a 24mm GXP road crankset instead of a 30mm option, you'll need the Chris King BB Conversion Kit 5 to make it all happen. This conversion kit adapts a Chris King PF30 bottom bracket to use with a road GXP 2422mm standard crankset, for a 68mm PF30 frame. Please note that the Chris King PF30 bottom bracket is sold separately. The Chris King BB Conversion Kit 5 is available in the color Black, and one size.