JMCHstore 5/8'' 16mm Engine Shaft Clutch Spacers for Coleman CT200U CT200U-EX BT200X Mini Bike; DB30 Doodlebug Mini Bike; Realtree RT100 105cc Mini Bike. For Monster mega moto MM-B80/MM-B105; Mototec 105cc; Motovox MBX10 11 12; Oryxearth 105cc Kid mini bike Engine; Enhanced Protection: The ZINC coating on our Clutch Spacer provides effective protection against rust and corrosion. This safeguards your engine's clutch system, minimizing the risk of damage and ensuring smooth and efficient operation. Improved Performance: By properly spacing the clutch components, our Clutch Spacer optimizes the engagement and disengagement of the clutch system, resulting in smoother and more efficient power transfer. Experience improved acceleration and overall performance on your mini bike. Shim size : OD: 1 1/8'' (28.5mm); ID: 5/8'' (16.2mm); Thickness: 1/8'' (3.4mm); Enhance the performance and durability of your mini bike's engine with our high-quality Clutch Spacer. Designed to fit 5/8 inch & coleman 16mm shaft engines with a capacity of 79cc 105cc &hisun 196cc, our Clutch Spacer is compatible with popular models like the Coleman CT200U, CT200UEX, and BT200X ct100u cc100x mini bikes