Dura-Ace Shimano FC-7900 Chainring Review Posted by Pelicandy September 14, 2018 in Drivetrain Components Type: Double Speed: 10-speed Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity. Random Products Sugino 26t 74mm MTB Chainring Review SHIMANO XTR 9000 Trail Mountain Bike Crankset R... Joan Bicycle Chainring Sprockets Cranksets Guard P... Chain Wheel 53T/39T Dual Disc PCD 110 BCD Black Ch... Cycling Dura Ace Outdoor Recreation Parts & Components Sports & Outdoors