Compatibility:
Polaris RZR Pro R4, Polaris RZR Pro R
Keller Ball Joints are made with hardened 4340 chromoly steel. They’re fully greaseable and adjustable, so they’ll last basically forever with proper maintenance.
This long lasting, water repelling film absorbs pin bushing shock to reduce chain stretch. It’s resilient coating reduces chain stretching and shock that normally is encountered during off-road racing and riding.
PJ1 is petroleum-based and reduces chain friction and shock, resulting in less wear and fewer adjustments. This formula is designed to displace and repel water, protecting against rust and corrosion.