This Factory Pro over ratio spur gear is an RC-scale replacement part intended for fine tuning gear ratios on mini touring and compact chassis. It matches 48 pitch gear systems and provides a 33T tooth count to alter final drive characteristics without changing wheel or motor components.
Compatibility stated by the product covers T.O.P. FD Mini units and Tamiya M Series platforms (notably M05, M06, M07, M08), so verify your gearbox accepts a 48 pitch spur gear and the listed tooth count before ordering. The part number is O-AP0001 for reference when checking fitment.
Installation notes: confirm pinion-to-spur mesh clearance, check for interference with the gearbox housing or nearby components, and secure the spur using the original fastener practice for your chassis. Small ratio changes can affect acceleration and top speed balance, so test on the bench before track use.
Use this spur gear when you need a modest over-ratio change while keeping a 48 pitch drivetrain layout; always confirm mesh and clearances and run controlled tests to evaluate handling and motor load.
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