Suitable for: 42T bike crankset, 170mm arm, suits for single speed bicycle and 6/7/8/9/10/11 Speeds MTB Bike, floding bike
Drop Stop Design:Narrow wide chainning could prevents chain drop from the chainring, it is the most advanced tooth profile on the Market, making your cycling safer
Material: The material is aluminum alloy, which is sturdy, non rusting, the net weight is only 0.6kg(1.32lb)
104 BCD Chainring: Convenient for future disc replacement, giving you more options