122mm Rear Sprocket 420 Chain 29T Steel Alloy Replacement for MONKEY Z50A Z50 Z50R Z50J

Feature: 1. Fitment: Rear chain sprocket is good replacement for MONKEY Z50A Z50 Z50R Z50J, suitable for 420 pinion electric tricycle. 2. Characteristic: 420 chain rear sprocket has 29?tooth, the outer Diameter is 122mm4.8in, and the inner Diameter is 30mm1.18in. 3. Premium Material: The sprocket is made of high quality steel alloy, which is durable, has strong toughness and long service life. 4. Compact Size: The rear sprocket adopts a simple design, lightweight and compact, easy to carry and use, convenient and practical. 5. High Quality: Professional manufacturing, exquisite workmanship, rear sprocket has high reliability and stable performance. Specification: Item Type: Rear Sprocket Material: Steel Alloy Sprocket Hole Distance: Approx. 48mm1.89in (3 Bolts are Fixed on the Rear Wheel Hub) Quantity of Gears: 29T Chain Specification: 420 Chain Sprocket Outer Diameter: Approx. 122mm4.8in Sprocket Bolt Diameter: Approx. 8.8mm0.35in Sprocket Inner Diameter: Approx. 30mm1.18in Sprocket Thickness: Approx. 6mm0.24in Application: Can be used for the replacement, renovation and maintenance of the original car sprocket, with better transmission performance and riding experience Fitment: Replacement for MONKEY Z50A Z50 Z50R Z50J, suitable for 420 pinion electric tricycle.. Package List: 1 x Rear SprocketFitment: Rear chain sprocket is good replacement for MONKEY Z50A Z50 Z50R Z50J, suitable for 420 pinion electric tricycle. Characteristic: 420 chain rear sprocket has 29?tooth, the outer Diameter is 122mm4.8in, and the inner Diameter is 30mm1.18in. Premium Material: The sprocket is made of high quality steel alloy, which is durable, has strong toughness and long service life. Compact Size: The rear sprocket adopts a simple design, lightweight and compact, easy to carry and use, convenient and practical. High Quality: Professional manufacturing, exquisite workmanship, rear sprocket has high reliability and stable performance.