【Premium Quality】:This bike crank arms is made of premium quality Forged Alloy 6061 T6 material, which is sturdy and durable in use. It is not easily damaged and deformed, has reliable quality and ensures high strength for long lasting usage.
【Feature】Crank arm length is 170mm,BCD is 130mm.
【Spindle Interface Type】Square taper. Please check if the orientation of your right crank is Square. Keep both left and right things having the same hole.
【Easy to install】:The crank arm is lightweight, easy to install and use.
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