ABSOLUTEBLACK OVAL 110mm 40T 4B CX 1X N/W BLACK LINKS & PINS Flush mount 8mm chromoly hex

Flush mount 8mm chromoly hex bolts

Converts BB30 frames to a single speed or fixed gear setup

Stiff aluminum carriers

aesthetic bolt covers are not offered for these designs

chain stays

ABSOLUTEBLACK OVAL 110mm 40T 4B CX 1X N/W BLACK LINKS & PINS Flush mount 8mm chromoly hexReliable, 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, Ultegra 8000, R8020, R8050 & 8070, 105 R7000, R7020, R7070, Dura Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700 cranks Oval chainrings have been shown to improve traction and reduce leg fatigue Narrow Wide tooth profile helps prevent dropped chains