Brand HPI

Check the listing for details. RC Engine Ceramic Ball Bearings - HPI NITRO STAR S-25 W/Pullstart (by Kingstar). Condition: New. Listed at 29.99 USD. HPI Nitro Star S-25 W/Pullstart. Ceramic Engine Bearings are a Great Performance Upgrade! Improves driveline efficiency, acceleration, mileage, weight, unsprung weight, and more! Ceramic Ball Bearings are up to 40% lighter than Standard Ball Bearings.

$20.99
$29.99