FMFXTR Single Chainring Bike 104 BCD 40T Round Narrow Wide Chainring for Mountain (Blue)

• Made of aluminum alloy. Light weight, but it has a great strength and high performance.
• The front derailleur is removed, the load on the bike is reduced, the chain cannot be dropped, and reduce the annoy of chain dropping.
• The narrow wide design ensures that the chainring is more stable, effectiv ely protects frames from scratches, and can reduce friction and noise.
• The ergonomic round design can reduce the load on the legs or knees, ensuring more comfortable and smoother riding.
• The unique shape increases the contact area of the chain, improves the grip, and reduces the chain sag, making it easy to pass on uneven roads.

Item Type: Bike Chainring Material: Aluminum Alloy Product Size: (Allowable Error of Manual Measurement) Outer Diameter: Approx. 168mm / 6.6in Adjacent Aperture: Approx. 74mm / 2.9in Diagonal Aperture Approx. 104mm / 4.1in Number of Teeth: 40T Package List： 1 x Bike Chainring Note: Carefully observe the teeth of the chainring. The teeth are a little bit sharper, a little bit blunt, and a little shorter. This design is to make the chain easier to leave and adapt to the disc when shifting, and the shifting is smoother, and it is not a defective product.