Kyosho UM509B Differential Gear 52T for RB5  [KY-UM509B]

Kyosho UM509B - Diff. Gear Set(52T/RB5)
Price:
NZD$17.46
Brand:
Kyosho
Model:
KY-UM509B
GTIN:
4548565470624
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Kyosho UM509B 52-tooth diff gear tailored for RB5

The Kyosho UM509B Diff Gear Set features a 52T arrangement and serves as a straightforward swap for RB5 cars. It is intended to restore proper drivetrain function and deliver consistent response across typical club tracks and rougher surfaces.

Fitment notes and on-track performance

Built to suit the RB5 layout, this diff set offers secure engagement and steady rotation. The 52-tooth count helps produce a neutral balance between acceleration and traction suitable for mixed-surface running.

Assembly hints and upkeep

During installation of the Kyosho UM509B Diff Gear Set keep bearing clearance and gear mesh correct, and retighten fasteners after initial running. Routine inspections of teeth and lubrication will prolong service life.
Remark :
Due to limited stock availability, please notice that some Kyosho items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Can I use the UM509B in modified RB5 setups?

Yes, the plate and shaft interfaces match standard RB5 dimensions, but confirm clearances if you run nonstandard gearboxes or aftermarket diff housings.

Is a break-in procedure required for new diff gears?

A short run-in at moderate speed with periodic inspections helps seating of gear teeth and exposes any alignment issues before hard running.

Are spare bearings recommended when changing the diff?

Replacing worn bearings during a gear change is good practice, as fresh bearings ensure correct mesh and reduce stress on new gear teeth.

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