absoluteBLACK introduces premium Gravel - Road 110/4 oval chainrings in Sub-compact (super compact) sizes to improve your climbing and cadence. Increased Cadence is key to reducing perceived effort. With 46/30T and 48/32T chainrings you can ride anywhere and climb anything. Alpine climbs will never be that difficult anymore. These special super compact chainrings are compatible with all Shimano 110/4bcd cranks making absoluteBLACK the only company on the market offering such sizes. 30 and 32T chainrings allow you to climb on your own terms with improved cadence and efficiency. Ready to try?Size (Mass +/-1g):30T (27g), 32T (30g), 46T (99g), 48T (110g) Compatibility:Dura-Ace 9100, R9150 Di2, Ultegra 8000, R8050 Di2, Dura-Ace 9000, Ultegra 6800, Shimano 105 - 5800, Tiagra 4700Bolts:Special bolts are included with 30T (2xM5 TI / 2xM7 AL)Special bolts are included with 32T (4xM7 AL)Material & Finish:CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizingOvality:Optimiz