Aluminium 7075 T6
Technology CT² : CERAMIC top layer impregnated with TEFLON
Adding 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) : 104mm
Bolt Circle Diameter : 104 mm / 4 arm
Chainring type : Outer
Colour : Black
Material : Aluminium
Speed : 9
Teeth : 42, 44
- External chainring
- Weight : 77g