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

Kyosho UM737 - SP Idler Gear (40T/RB6.6/LD)
Price:
CAD$8.96
Brand:
Kyosho
Model:
KY-UM737
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Efficient Drivetrain Performance with Kyosho UM737

Upgrade drivetrain efficiency with the Kyosho UM737 40T Idler Gear, built to suit the RB6.6 and LD chassis. Precision manufacturing ensures consistent torque transfer and helps reduce wear across gears for reliable track performance.

Engineered for Smooth Gear Engagement

The Kyosho 40T idler is machined to maintain accurate tooth mesh and minimise slop under load, lowering the chance of gear slip during hard acceleration. Robust construction stands up to frequent racing and intense practice sessions.

Simple Fit for RB6.6 and LD Chassis

Designed specifically for Kyosho RB6.6 and LD platforms, this idler fits into the standard gear stack with minimal adjustment. Installation is straightforward, letting you tune drivetrain response quickly.
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 this idler work on older RB6 variants?

Some older RB6 models can accept the idler but check tooth spacing and mounting points before fitting. Minor shims or alternate screws may be needed.

How often should I inspect the idler gear?

Inspect the idler after every few race sessions or after heavy impacts, looking for tooth wear, play, or damage to avoid drivetrain issues.

Will this reduce drivetrain noise?

Proper mesh and a precision idler like the Kyosho UM737 can lower operational noise by keeping gears aligned, though final noise level also depends on pinion and spur alignment.

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