absoluteBLACK Oval 104 BCD Chainring - 32t 104 BCD 4-Bolt Narrow-Wide Green. absoluteBLACK Oval 104/64 BCD Chainrings are designed for use with all cranksets with a 104/64 BCD interface including Shimano SRAM RaceFace FSA and more. These chainrings allow you to run a 1x system without chain retention issues. The specially designed narrow-wide tooth profile keeps the chain snug allowing you to leave your chain keeper in the garage. They are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. Ovality has been optimized for each chainring size ranging from 10.2 - 14.4% with timing of 110.5-116.3° after TDC (top dead center).

Oval shape reduces stress on knees helps to keep your legs fresh and does not feel any different while riding

The unique patent-pending narrow-wide tooth profile keeps the chain in place

Teeth have been 3D-machined for ultimate mud shedding and quieter operation

Provides excellent weight to strength ratio

Compatible with all cranks with a 4x 104BCD interface including Shimano XT / Zee / Deore / SLX / XTR Race Face Sixc RF Ride RF Chester RF Respond FSA E13 and many more