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Aluminium 7075 T6Technology CT² : CERAMIC top layer impregnated with TEFLONAdding CERAMIC ensures a harder surface, longer life, resistance to scratching and the TEFLON reduces the chain's friction coefficient by over 80% and makes for diminished noise factor, lower over all friction, less need for lubrication and optimized indexation between chainrings.These chainrings combine the following features : Resistance / light weight / precision / efficiency / easy to use.Bolt circle diameter (BCD) : 130mm10 and 11 speed compatible5 arm chainringColour : BlackWeight : 38/35g, 39/37g, 64/44g, 48/73g, 50/80g, 53/82g
Compatible to Shimano/Sram/FSA
Road, Triathlon, City/Touring
7075-T6 CT² (ceramic PTFE coated)
Number of Holes: 5 screws BCD: 130 mm
Front derailleurs: 2-speed Rear shifters: 10-speed, 9-speed