HARFINGTON Bike Chainring Set Round Narrow Wide Aluminum Chainring Chainwheel with Double Round 5 Bolts for Road Bike Bicycle

1. Constructed from high-strength aluminum alloy through precision CNC machining, this material offers an excellent strength-to-weight ratio, ensuring a durable chainring.2. Designed with sharp-edged teeth to securely engage the chain, enhancing riding efficiency and minimizing wear for a smoother ride. The innovative tooth profile ensures precise shifting and reduces the risk of chain slippage, even under rigorous cycling conditions.3. Specifically designed for road bikes, this chainring enhances overall riding performance and meets diverse cycling needs across a variety of riding conditions. It supports 9, 10, and 11-speed chains, offering exceptional versatility for modern road cycling.4. Ensure the crankset matches before buying to prevent problems. Mismatched parts may cause performance issues or damage. Confirming compatibility among all components is essential for the reliable and long-term durability of your bicycle's gear system.

• Size - BCD Size: 130mm / 5.12", Outer Diameter: 162mm / 6.38", 218mm / 8.58", Hole Spacing: 76.4mm / 3.01", Tooth Count: 39T/53T, designed for compatibility with 130BCD bicycle cranks.
• Material - Constructed from high-strength aluminum alloy through precision CNC machining, this material offers an excellent strength-to-weight ratio, ensuring a durable chainring.
• Feature - Designed with sharp-edged teeth to securely engage the chain, enhancing riding efficiency and minimizing wear for a smoother ride. The innovative tooth profile ensures precise shifting and reduces the risk of chain slippage, even under rigorous cycling conditions.
• Application - Specifically designed for road bikes, this chainring enhances overall riding performance and meets diverse cycling needs across a variety of riding conditions. It supports 9, 10, and 11-speed chains, offering exceptional versatility for modern road cycling.
• Note - Ensure the crankset matches before buying to prevent problems. Mismatched parts may cause performance issues or damage. Confirming compatibility among all components is essential for the reliable and long-term durability of your bicycle's gear system.