40 Tooth Sprocket 420 Chain 40mm Bore Replacement for Mini 40 Product Details Package Dimensions : 7.36 x 7.13 x 1.06 inches; 1.5 Pounds Item model number : CO-420-40T-DC Manufacturer : CILOYU Fitment: 420 sprocket 40t is compatible with Predator 212cc 196cc 6.5hp engine Coleman Baja TrailMaster Massimo Powersports mini bike go kart Compatibility: Coleman Powersports CT200U CT200U-EX BT200X KT196, Baja Motorsports mini bike MB165 MB200 (Heat, Mini Baja, Warrior), Hensim mini bike MB165 MB200 (Heat, Mini Baja, Warrior), MASSIMO MB200, TrailMaster MB200, Axis M200 Premium Quality Material: The 420 chain sprocket is made of alloy steel, the surface colour bright and rich, firmness and resistance, precision tooth design let the sprocket fit the wheel perfectly Improve the Efficiency: In the event that the front sprocket of the kart remains unchanged, mini bike sprocket 40T has a faster transmission speed and improves fuel efficiency. Experience a more powerful ride and save fuel at the same time Size: #40/41/420 chain, teeth: 40 tooth, mounting hole distance (center to center, bolt hole circle): 3-3/16" (80 mm), center hole diameter: 1-9/16" (40 mm), overall diameter: 6-1/2" (165 mm)