Tamiya 15429 JR High Speed EX Gear Set for MS Chassis 3.7:1 - Precision tuning for racers  [15429]

Tamiya 15429 - JR High Speed EX Gear Set - MS Chassis/Gear Ratio 3.7:1
Price:
£4.13
Brand:
Tamiya
Model:
15429
GTIN:
4950344154296
Condition:
Brand New
Available in warehouse
2 Reviews
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Product brief for the Tamiya 15429 JR High Speed EX Gear Set

The Tamiya 15429 JR High Speed EX Gear Set provides Mini 4WD competitors an intermediate 3.7:1 gear ratio option for MS chassis models. It is intended for racers seeking a compromise between the quicker 4:1 and the more torque-oriented 3.5:1 setups.

Fitment to MS chassis and design notes

Specifically manufactured with MS chassis dimensions in mind, this gear set maintains the chassis versatility that hobbyists expect. Using 3.7:1 allows for more nuanced drivetrain tuning without major changes to the vehicle architecture.

Race strategy and setup considerations

Introducing this ratio broadens strategy choices on mid-speed layouts. Racers can tweak gearing to reduce corner understeer and improve exit acceleration where existing ratios produce uneven results.

 

Product Reviews
2 Reviews
rating
I have been purchasing Tamiya products with Rcjaz for a couple of months now, selection is awesome and service is quick and reliable, considering I leave half way around the world.
rating
Excellent service, two of the items I purchased were out of stock but was given fair options on refund, store credit or replacement. I opted for replacement as there was a different version available and one of the items did arrive bent and they sent out
Yes. It is a sensible intermediate choice for testing changes without making large leaps in gearing. Use it to assess motor and tyre combos before further changes.
Set a slight tooth-to-tooth clearance and spin the drivetrain by hand to feel for smooth rotation. Adjust shims or bearing placement if any binding or excess play is detected.
It can. The 3.7:1 option can reduce abrupt rear traction loss on corner exit, giving a steadier balance that many racers prefer on technical circuits.
Regularly inspect gear teeth for wear, keep gears lightly lubricated, and confirm axle alignment. Routine checks help sustain consistent performance.

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