Description
Standard replacement bearing for the JRX jack shaft housing. Suggested replacement interval is every 7 to 10 races – this is a wear part with a real service life, not a fit-and-forget component.
The jack shaft carries drive load in a dirty, wet environment, and a bearing that has done its races starts introducing drag and play before it fails outright. Replacing on schedule is cheaper than replacing a housing.
An RF85 treated upgrade bearing is available if you want longer service life. Sold individually. Built for JRX Jr. Sprint chassis, in stock in Fresno, CA.
