Narrow wide tooth, it design for 1x speed only, can not use as 2x speed, not support front shifting derailleur. The flywheel cassette support 7-12s.
130 BCD single chainring fit for 7 8 9 10 11 12 speed road bikes and folding bikes. The anti-drop chain design makes riding safer.
Aluminum 7075 ensures rigidity while being lightweight. Full CNC makes for precise size and nice looking surface.
Current tooth shape is the 2nd generation narrow wide tooth. Effectively prevent chain drop.Many curves, easy to clean and easy to self-clean. Extends chainring life.
