Bánh Răng Xe Đạp 50-58t 9-11 Tốc Độ 170mm 130bcd

Giới thiệu Bánh Răng Xe Đạp 50-58t 9-11 Tốc Độ 170mm 130bcd

Description:
Made of premium aluminum alloy, CNC machined and electroplating process - bright, corrosion resistance, ultra-light but high strength
Specifications: 50T 52T 54T 56T 58T; standard 130mm BCD; 170mm Crank Arms
Narrow wide tooth design increase the contact area with the chain greatly
Comes with 5 bolts for easy and convenient mounting

Specification:
Teeth Length: 7.2mm/0.28 inch
Thickness: 4mm/ 0.16 inch
50 T:
Diameter: 208mm/ 8.2 inch
52 T:
Diameter: 216mm/ 8.5 inch
54 T:
Diameter: 224 mm/ 8.8 inch
56 T:
Diameter: 231 mm/9.09 inch
58 T:
Diameter: 242 mm/ 9.5 inch
Package Includes:
1 Piece Bike Chainring
1 Pair Crank Arms (left and right)
Note:
The chain must be lengthened if the larger chain ring is replaced.
Please allow 1-2mm differences due to manual measurement.
When choose large chainring, please confirm that whether its diameter is within an appropriate range, otherwise it will need to replace a longer axle.

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