• Aluminum Alloy: The bike crank is made of high strength aluminum alloy, which is wear resistant under stress and will not break when stepped on.
• Stable Structure: The bike crank arm set has stable structure, good compression resistance, thickened aluminum, and is sturdy and durable.
• CNC Machining: Accurate CNC machining of bike crank improves strength and rigidity, and the surface is glossy and sharp without burrs.
• Hollowed Designed: The left and right cranks are hollowed out in a large area, greatly reducing the weight while maintaining the strength.
• High Strength: The bike chainring set has high strength, low noise, improved rigidity, and the sealing system is not easy to be damaged.