These chainrings are made from high quality material, make suring they can handle the abusive ways of the trail.The drilled steel and thicker 6061-T6 CNC aluminum alloy rings provide superior rigidity,64 mm/104 BCD chainrings to fit all standard cranks with 4 bolt, 104 mm spiders. Chainring： Brand: BUCKLOS Color: Black BCD:104-64mm Size: 4-Bolt Bolts Material:Stainless steel Chainring Material: Steel Different Type Using Material: 44-32-22T(Steel) Graduation: 44 teeth, 32 teeth, 22 teeth Compatible: 44-32-22T / 9 speed Fit all standard cranks with 4 bolt, 104 mm spiders. Intended Use: MTB, Hybrid, Touring Bike Package：1PC 44-32-22T Chainring+4PC Bolts Irregular Tooth Design:Featuring irregular teeth and concave-convex design to make sure smooth and fast shifts. These chainrings are made f.
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