Universal Parts #530 5' Roller Chain connection this is the most powerful

this is the most powerful starter available for the QMI/QMJ platform

Stiffer linear sport spring — reduces rear-end wallow over bumps and pavement transitions

Material: Heavy-duty stamped metal

this kit increases your displacement to approximately 60cc

Universal Parts #530 5' Roller Chain connection this is the most powerful#530 Metric Roller Chain found on many Dirt Bikes, ATVs and Motorcycles Please select from 3 foot, 5 foot, or 10 foot sections Sold in 3 ft., 5 ft., and 10 ft. Sections Pitch: 15. 875mm Roller Diameter: 10. 16mm Width Between Inner Plates: 9. 4mm Pin Diameter: 5. 08mm Pin Length: 20. 7mm Same as #50 chain.