Hot Bodies Cyclone Sport/Racing Aluminium Differential Bearing Holder - CY-09/2 by 3Racing  [CY-09/2]

Technical overview of the aluminium bearing holder

This aluminium differential bearing holder is supplied as a direct replacement for Hot Bodies Cyclone Sport and Racing platforms. It serves as the bearing seat and alignment reference for the differential assembly, offering a firmer mounting surface than typical polymer holders to improve dimensional stability under load.

The design reduces lateral play within the diff assembly, improving repeatability when changing gear ratios or internal diff oils. Tight bearing seating helps maintain consistent preload and reduces variable shaft movement that can affect traction and steering response during competitive running.

Installation follows conventional differential maintenance: remove the diff from the gearbox, remove bearings and the original holder, install bearings into the new aluminium holder ensuring correct seating, then reassemble. Use common RC hex drivers and bearing tools. After reassembly, confirm bearing preload, check for smooth rotation and verify there are no binding points in the drivetrain.

Approach this part as a precision upgrade that refines bearing alignment and diff behaviour. Regular inspection of bearing fit, fastener torque and drivetrain freedom will ensure predictable performance across race weekends and practice sessions.