Check the listing for details. Go Kart Drive Belt 725 for Hammerhead 80T TrailMaster 6.5HP Engine 30 Series US. Color: Black, Condition: New. Listed at 11.68 USD. Product Details: Colour: Black. Material: rubber. (Made of high-quality rubber material, strong and durable.) Interchangeable part number: 9.110.018-9.100.018-725 Replace: Replace the Hammerhead 80T and TrailMaster Mid XRX Mud Head Go karts with a 6.5hp engine. For Hammerhead 80T and TrailMaster Mid XRX Mud Head Go karts, equipped with a 6.5hp engine. Asymmetric drive belt 725 for 30 series torque converters. Used in many kits as well as Trailmaster and Hammerhead medium karts. size: Width: 1.91 cm/0.75 inch (approximately). Length: 68.66 cm / 27 1/32 inches (approximately). Dimensions: 22 x 1.1 x 1.9 cm/8.6 x 0.4 x 0.7 inches. Package includes: 1 x transmission belts. 100% brand new high quality transmission belt.