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Parameter: 1. Weight: 45T 80g, 47T 85g, 53T 110g, 56T 120g, 58T 135g 2. BCD: 130 mm 3. Material: aluminum alloy 4. Diameter: 45T 195 mm, 47T 205 mm, 53T 225 mm, 56T 235 mm, 58T 245 mm 5. Application: 14-inch folding bicycles are generally 45T/47T, 16-inch foldable bicycles generally do not exceed 53T, 20-inch foldable bicycles generally do not exceed 56T (adjust according to personal circumstances) 6. Specifications: 45T, 47T, 53T, 56T, 58T 7. Color: black, red, silver, gold Features: 1. Fully hollow and lightweight design, lightweight and practical 2. Full CNC cutting, strong and durable 3. Thicker disc, better rigidity 4. Positive and negative tooth design, not easy to drop the chain, arc transition of the connection position, not easy to accumulate sand 5. Easy to install Description: 1. The larger the number of teeth of the disc, the larger the diameter, the faster the relative riding, and the harder it will be 2. When choosing a disc with a large number of teeth, please make sure that its diameter will not rub against the frame, otherwise you need to replace a longer bottom bracket 3. Change the large number of teeth disc, the chain must be lengthened 4. Please make sure that the BCD is 130 mm 5. BCD is the circle surrounded by 5 holes of the crank. The diameter of this circle is 65mm from the crank hole to the crank center. (Note the distance on the plane on the side of the chainring)
