Features:1.Compatibility: The rear sprocket is specifically designed for 40 41 420 chain Mini Bike Go Kart. Replacement for CT200U BT200X CT200U?ex 212cc 196c 6.5hp; Replacement for Baja Motorsports Mini Bike MB165 MB200.2.Steel Alloy Construction: The sprocket is forged from a durable steel alloy material, ensuring a 5mm thickness that makes it resistant to breakage, combating daily wear and tear for reliable operation and long lasting durability.3.Essential for Drive System: The rear sprocket plays a vital role in the drive system, ensuring stable and efficient chain drive. It enhances the overall performance of the drive system, increasing stability and efficiency.4.Performance Enhancement: The size of the rear sprocket can have an impact on the performance of the vehicle. This rear drive sprocket can increase torsion and climbing ability.5.Versatile Applications: The chain rear sprocket can be used for various applications, including refurbishing, replacing, and modifying old and damaged sprockets on original vehicles.Specification:Item Type: Rear Drive SprocketMaterial: Steel AlloyNumber Of Sprocket Teeth: 60TInner Diameter Of Sprocket: Approx. 40mm / 1.57inOuter Diameter Of Sprocket: Approx. 245mm / 9.64inThickness Of Sprocket: Approx. 5mm / 0.19inPosition On The Vehicle: RearScrew Fixing Holes: 4Adaptable Chain Type: Works for 40 41 420 chain for go karts and mini bikesFitment:Replacement for CT200U BT200X CT200U-ex 212cc 196c 6.5hp,Replacement for Baja Motorsports Mini Bike MB165 MB200 (for Heat, for Mini Baja, for Warrior),Replacement for Hensim Mini Bike MB165 MB200 (for Heat, for Mini Baja, for Warrior),Replacement for Massimo MB200Replacement for Trailmaster MB200 mini bikeNote:This sprocket is designed with 60 teeth for 40/41/420 chains for karts and mini bikes. Please make sure the center hole diameter and mounting hole distance of your original sprocket are the same as our products, if not, it is not suitable for your bike!