3Racing SAK-U420 Sakura Ultimate Center Pulley 19T Racing Part  [SAK-U420]

Technical overview of 3Racing SAK-U420 centre pulley

The 3Racing SAK-U420 Sakura Ultimate Center Pulley 19T Set is specified for racers seeking consistent drivetrain behaviour. With a confirmed 2.1 gear ratio matched to the stock 19T2014 arrangement, this pulley refines torque transfer and reduces drivetrain variability. It is suitable for competitive setups where predictable power delivery is crucial.

Technical features and fitment

• Compatibility: Precisely intended for Sakura Ultimate chassis to ensure accurate spline engagement and correct axial alignment.
• Tooth Count: 19T, selected for a competitive balance between acceleration and top speed under race conditions.
• Gear Ratio: 2.1, optimised to manage load distribution across the drivetrain for consistent lap times.
• Durability: Manufactured to withstand repeated track use with regular inspection and maintenance.

Installation and setup guidance

Install the 3Racing SAK-U420 using standard RC workshop practices: verify spline seating, set correct gear mesh, and confirm bearing condition. After initial runs, recheck fasteners and mesh to ensure the assembly remains stable under race loads.