Single Chainring Crankset. 30T/32/34/36/38T 5 sizes available
1.152/165/170mm crank arm length,fits any 104 BCD crankset.
2.Drop-Stop technology. On wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction.
3.Alternating wide/narrow tooth pattern prevents chain derailment.
4.Its hard anodised finish increases its longevity and durability.
【Tips】: Those crank and chainring sets are only suitable for single speed bike system . not fit for double,triple crankset. If you have any problem ,please feel free to contact us,we will give you a satisfied solution