Tough enough for Enduro, Downhill, and also weight conscious for XC riding, Praxis MTN Narrow Wide rings are machined from 7075 T6 aluminium and hard anodized to take a beating.
Only compatible with V-Shape spiders.Narrow-Wide (Megatooth) tooth profile.Holes: 4.BCD: 104/64mm.SH12: Compatible only with Shimano 12 speed chains...