PROX Upper Rod Bearing - 22 mm x 27 mm x 24.8 mm - Polaris

ProX pistons provide a reliable and cost-effective way to maintain the engine of your sled in excellent conditionHigh-quality cast piston made with dedicated tooling and moldingMade from hypereutectic alloy for extra strength and reduced expansionSpecial dual-ring setup for improved durability and resistance to wearFull MOS2 skirt coating for improved breaking in and resistance to scuffingAnodized piston dome for increased protection against excessive heatUsage of high-quality rings such as Riken for optimum heat transfer and sealingPacked in a box containing piston, rings, pin, clips and top-end bearing.