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 122mm/4.8in, and the inner diameter is 30mm/1.18in. 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.Item Type: Rear SprocketMaterial: Steel AlloySprocket Hole Distance: Approx. 48mm/1.89in (3 Bolts are Fixed on the Rear Wheel Hub)Quantity of Gears: 29TChain Specification: 420 ChainSprocket Outer Diameter: Approx. 122mm/4.8inSprocket Bolt Diameter: Approx. 8.8mm/0.35inSprocket Inner Diameter: Approx. 30mm/1.18inSprocket Thickness: Approx. 6mm/0.24inApplication: Can be used for the replacement, renovation and maintenance of the original car sprocket, with better transmission performance and riding experienceFitment: Replacement for MONKEY Z50A Z50 Z50R Z50J, suitable for 420 pinion electric tricycle.
What's in the box
1 x Rear Sprocket
