Kyosho UM737 - 40T Idler Gear for RB6.6/LD Lightweight Race Idler  [KY-UM737]

Kyosho UM737 - SP Idler Gear (40T/RB6.6/LD)
Price:
NZD$10.86
Brand:
Kyosho
Model:
KY-UM737
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Optimise Torque Flow with Kyosho UM737

Fit the Kyosho UM737 40T Idler Gear to improve torque transmission on RB6.6 and LD chassis. Its precision finish helps maintain consistent drive feel and reduces uneven wear across the gear train.

Designed for Accurate Tooth Contact

The Kyosho 40T idler focuses on correct tooth engagement to limit slippage under load and keep power delivery predictable. The sturdy build copes well with frequent track use.

Straightforward Upgrade and Fitment

This idler is compatible with Kyosho RB6.6 and LD frames and installs without complex modifications. It is a quick upgrade for drivers refining drivetrain performance.
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.

Does it need special lubrication?

Use a light gear lubricant on bearings and mating surfaces as recommended; avoid heavy greases on teeth that can attract grit and increase wear.

Can I run this on offroad tracks?

Yes, the durable construction handles offroad conditions, but keep the gear and surrounding area clean to prevent grit from shortening service life.

Is the idler compatible with aftermarket spurs?

Compatibility depends on spur profile and stack height. Verify clearances and tooth alignment when mixing aftermarket components with the Kyosho UM737 idler.

Will this change gear ratios?

The idler does not alter gear ratio by itself, but correct positioning can influence final mesh with pinion and spur, so double-check setup after fitting.

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