ABSOLUTEBLACK OVAL 110mm 38T 5B CX 1X N/W GY BB86/92 BB Only chain guides on the

Only chain guides on the market that are designed specifically for oval chainrings

37` x 24T ENG/BSA thread

2 CNC machined 6061 cone spacers

handlebars and many other uses

BBRight Press Fit and Specialized Carbon OSBB* (*requires spacers for 61mm shell)

ABSOLUTEBLACK OVAL 110mm 38T 5B CX 1X N/W GY BB86/92 BB Only chain guides on theReliable, light and darn good looking Designed for all Shimano 5 bolt cranks like Dura Ace 7950, Ultegra 6750, Shimano 105 5750 and many more Compatibility: Shimano Dura Ace 7950, Ultegra 6750, Shimano 105 5750, Tiagra 4650, FSA, Rotor 3D & 3D+, S works and many older cranks Oval chainrings have been shown to improve traction and reduce leg fatigue Narrow Wide tooth profile helps prevent dropped chains Expertly machined 7075 aluminum