MRP Wave Oval ChainringThe Wave Oval MTB chainring features a host of technologies which provide robust chain handling and retention characteristics while delivering market-leading durability. This model features an exclusive Wave pattern which applies alternating lateral force to each chain link and swings from right to left, grasping the interior of your chain for superb retention. To top it off, its design creates more open areas which help to clear mud and debris as you ride making it the perfect choice of upgrade or replacement for a stronger and more reliable chain setup.Features: Material: Alloy Bolt: 4-bolt BCD: 104mm Shape: Oval Alternating lateral force to each chain link to actively retain links to the ring Less surface contact between chainring and chain creating minimal friction and maximum retention Equal tooth thickness on entire chainring to allow for maximum mud-shedding clearance Tooth design allows for reduced weight chainrings over competitor technologyBuy MRP Components from Chain Reaction Cycles, the World's Largest Online Bike Store.