absoluteBLACK Oval 110 BCD for SRAM Apex Chainring for SRAM Apex 1 - 38t 110 SRAM Asymmetric BCD 4-Bolt Narrow-Wide Black. absoluteBLACK Oval 110 BCD 1x Chainrings for Cyclocross are designed specifically for SRAM Apex 1 cranks that feature an asymmetric 110 BCD 4-bolt pattern. The specially designed narrow-wide tooth profile keeps the chain snug. 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).

Only compatible with SRAM Apex 1 cranks

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

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

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

Provides excellent weight to strength ratio

Use original SRAM bolts to mount chainrings