ABSOLUTE BLACK

 Round chainrings specifically compatible with Shimano cranks Dura-Ace 9100, Ultegra 8000 & 105 R7000 but can be retrofit to all 9000 and 6800 series cranks Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T Rugged CNC machined 7075 aluminum construction Use original bolt when changing inner ring only, long bolts when changing outer Super stiff design due to thicker, 5mm construction 110mm 4-bolt 50T 7075AL Blac...

 Reliable, light and darn good looking Designed for all Shimano 4 bolt cranks like Dura-Ace 9100, 9000, Ultegra 8000, 6800 and many others Compatible with Shimano Dura-Ace 9100, R9120, R9150 & R9170 Di2, Ultegra 8000, R8020, R8050 & 8070 Di2., 105 R7000, R7020, R7070, Dura-Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700 ; 10 / 11 / 12spd compatible Oval chainrings have been shown to improve traction and reduce leg fatigue Narrow/Wide tooth profile helps prevent...

 One of a kind special oval shape that helps you climb easier and faster  Allows use of an oval small ring with a round large ring, or 2 oval rings Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction  Superb quality with great 6 point shifting design  Reduces stress on knees and helps to maintain your legs fresher for longer Provides excellent weight to strength ratio  110mm 4-bolt 50T 7075AL Black 1/9/10/11/12sp Standa...

 Premium Shimano 110/4 bcd compatible oval chainrings are designed for Dura-Ace 9100 and Ultegra 8000, but can also be retrofitted to 9000 and 6800 series cranks Expertly CNC machined from 7075 aluminum and type II anodized for a long lasting contruction and finish Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T - other combinations will work but may require more derailleur adjustment *30T can only work with 46T and special bolt set...

 Premium Shimano 110/4 bcd compatible oval chainrings are designed for Dura-Ace 9100 and Ultegra 8000, but can also be retrofitted to 9000 and 6800 series cranks Expertly CNC machined from 7075 aluminum and type II anodized for a long lasting contruction and finish Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T - other combinations will work but may require more derailleur adjustment *30T can only work with 46T and special bolt set...

 Premium Shimano 110/4 bcd compatible oval chainrings are designed for Dura-Ace 9100 and Ultegra 8000, but can also be retrofitted to 9000 and 6800 series cranks Expertly CNC machined from 7075 aluminum and type II anodized for a long lasting contruction and finish Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T - other combinations will work but may require more derailleur adjustment *30T can only work with 46T and special bolt set...