WEST BIKING 2-Piece 53t-39t Road Bike Aluminum Alloy Gear(Black)

The product is a 2-piece road bike gear set made from aluminum alloy. It is designed for everyday use on road bikes.

• Material: aluminum alloy
• Compatibility: road bikes
• Application: supports 8 speed, 9 speed, 10 speed, 11 speed
• Specifications: 39T-53T
• Construction: aluminum alloy 3D one-piece forging
• Feature: lightweight hollow structure
• Waterproof and rustproof
• Long service life
• Shift pin to prevent chain drop
• Guide chain groove design for smooth shifting
• Weight: 153 grams
• BCD: 130mm