44BMX 4-bolt Threaded Chainrings Size:38t Length options:

Length options:

CrMo or Ti 14mm axle options(14mm Alum nuts included)

There are three blades to choose from

not too loose

***The ZCoaster™'s freecoaster mechanism can only work if the jam nuts are fully tightened for optimum compression

44BMX 4-bolt Threaded Chainrings Size:38t Length options:Not just your ordinary chainring milling these from a solid block of 7075 aluminum means you are buying a straight and perfectly round chainring. This helps eliminate that annoying tight spot you sometimes get with other rings. Oh, but there's more. Our innovative tooth design provides better grip on the chain and a better wear pattern on the teeth. You'll find that the 44BMX Chainrings won't wear down as fast. AND, the threaded chainring bolt holes