Kyosho UM730-72C 72T Spur Gear Upgrade for RB7 and RB7SS  [KY-UM730-72C]

Kyosho UM730-72C - Spur Gear(48P-72T)(RB7/RB7SS)
Price:
NZD$17.16
Brand:
Kyosho
Model:
KY-UM730-72C
GTIN:
4548565470761
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Precision Spur for RB7 Platforms

The Kyosho UM730-72C 48P 72T spur gear is designed to work with RB7 and RB7SS chassis, delivering consistent engagement and smooth torque transfer. It is a practical option when trimming drivetrain losses in race trims.

Main Benefits of the 72T Gear

  • Engineered Fit: Sized and finished to match RB7 and RB7SS gearsets for reliable installation.
  • Race-Proof Build: Constructed to stand up to the stresses of repeated competition use.
  • Balanced Ratio: The 72-tooth count gives a useful blend of pace and pulling power for varied track layouts.
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.

How hard is the install on an RB7?

Installation is straightforward if you follow standard spur and pinion alignment steps. Confirm the bore and secure the set screw to the recommended torque to avoid slippage.

Should I use grease or oil on the gear?

A light gear-safe lubricant on contact faces can reduce noise and wear. Avoid heavy grease that attracts grit, especially on dusty tracks.

Will aftermarket pinions work with this spur?

Most aftermarket pinions with the correct pitch and bore will mesh, but always verify tooth pitch and shaft diameter before purchase to ensure compatibility.

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