HPI Baja Alloy Clutch Bell BJ613 for Upgrades by GPM  [BJ613]

Aluminium clutch bell for HPI Baja use

The BJ613 alloy clutch bell serves as an aftermarket replacement for HPI Baja RTR platforms, aimed at providing reliable engagement and straightforward fitment for 1/5 scale off-road rigs. It suits hobbyists who service or tune clutch systems.

Constructed from aluminium alloy as indicated in the title, this bell can substitute worn steel or cast components to help preserve clutch shoe contact and reduce heat soak into neighbouring parts. The package includes the screw and lock nut named in the product title to secure the bell to the clutch hub.

Installing this bell is a routine task for those familiar with clutch maintenance: remove the stock bell, assess clutch shoes and bearings, fit the BJ613, and secure it with the supplied screw and lock nut. Confirm concentric mounting and free rotation before final assembly to avoid undue spur or pinion wear.

As part of a broader clutch setup, switching to an alloy bell may change thermal and wear behaviour slightly; evaluate it alongside springs, shoes and bearings. Regular inspection and correct lubrication will help maximise longevity.

For enthusiasts upgrading or maintaining HPI Baja vehicles, the BJ613 is a practical alloy replacement that supports consistent clutch behaviour when paired with regular maintenance.