• Suitable for:42T bike crankset, 170mm arm, suits for single speed bicycle and 6/7/8/9/10/11 speeds MTB Bike, folding bicycle
• Material: The material is aluminum alloy, which is sturdy, non rusting, the net weight is only 0.75kg1.65lb)
• 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
• 104 BCD Chainring Convenient for future disc replacement, giving you more options