BLACK OVAL & SHIMANO CHAINRINGS IN SOUTH AFRICA

Discipline Road Bike Black Oval 52 tooth outer Chainring compatible with Dura-Ace 9000; Ultegra 6800; 105 5800 cranks; 110/4BCD Shimano 36 tooth inner Chainring 110/4BCD. The Oval chainring has saved my knees and I can definitely vouch for a better paddle stroke since I changed over. I found an easier effort to ride in bigger gears for longer without pain. absoluteBLACK Premium Shimano 110/4 bcd compatible oval chainrings are designed for new type of Shimano cranks Dura-Ace 9100, Ultegra 8000 & 105 R7000. Super fast shifting and amazing smoothness of pedaling. (They can be also retrofitted to 9000 and 6800 cranks). It is the most Premium oval chainring on the market with scientifically proven performance gains. 10/11spd compatible. Source: https://absoluteblack.cc/oval-road-da-9100-ultegra-8000-chainring