Aluminium Alloy Folding Bike Integrated Hollow Crank Left and Right Set Contains Middle Shaft ScrewBlack

Feature: 1. Made of high quality aluminium alloy material, durable and easy to use. 2. Fine workmanship with polishing process, high end practical hollow type. 3. Lightweight, stylish and gorgeous styling, high axial strength and compatibility. 4. Hollow single tooth disc shaft, suitable for mountain bike, road bike, folding bike modification. 5. 170mm crank arm length, no overlap between crank arm and chain bolts. Specification: Condition: 100percent Brand New Item Type: Bicycle Integrated Hollow Crank Material: Aluminium Alloy Optional Color: Black, Silver Suitable for: Folding Bike Quantity: Left and Right Crank + Middle Shaft + 5PCS Screw + 5PCS Single Plate Screw Weight: Approx. 795g Length: Approx. 170mm 6.69inch BCD: Approx. 130mm 5.12inch. Package List: 1 x Left and Right Crank 1 x Middle Shaft 5 x Screw 5 x Single Plate Screw1 x Accessories Note: 1. Please make sure the BCD of the tooth plate is 130MM2. BCD is a circle with five holes in the crank3. The Diameter of this circle is the distance from the crank hole to the center of the crank is 65MM(notice the distance in the plane on the side of the tooth disk)