Chromag Single Speed Chainring 36T x 104mm Blue Review Posted by GiantPandaisy July 6, 2018 in Drivetrain Components Chromag Chainrings Teeth: 36 Chain Compatibility: 9-Speed Chainring BCD: 104 Ring Position: Single Material: Aluminum Defined Color: Blue Color: Blue Catalog Page: Wght/Dims: .16 lbs. 8 x 7 x .25 Chromag Cycling Outdoor Recreation Parts & Components Sports & Outdoors