absoluteBLACK Premium Sub-Compact Oval 110 BCD Road Outer Chainring – 48t 110 Shimano Asymmetric BCD 4-Bolt Black. absoluteBLACK Premium Sub-Compact 110 BCD Oval Chainrings are designed to improve your climbing and cadence. They are compatible with all Shimano 110 BCD 4-bolt cranks. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability.

• Sub-Compact chainrings only work in predefined size combinations: 46/30 or 48/32
• Mounting bolts are included with the small ring
• Oval shape reduces stress on knees helps to keep your legs fresh and does not feel any different while riding
• Chainring design reduces the possibility of leg cramps and allows you to maintain a better cadence while climbing
• Use Shimano Dura-Ace 11-speed chain or SRAM Eagle 12-speed chain for proper clearance of mounting tabs
• Not compatible with SRAM Yaw front derailleurs
• 10 11 and 12-speed compatible

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