54T 420-Pitch Aluminum Rear Sprocket

【Material】-The sprockets are made of 7075 aviation aluminum alloy, which is the strongest aluminum available. Suitable for continuous 【CNC Machining】Using cnc processing technology, the surface is anodized, and the sprocket can be intact even under strong torsion. 【Specification】-420 Pitch 54 Tooth Rear Drive Sprocket.299g (0.66lb) The weight is only 1/7 of other ordinary sprockets. But it has the strength of super and ordinary sprockets