Classic upgrade kit Tamiya 53900 Spur Gear Set 93T/104T for F103GT OP-900  [53900]

Tamiya 53900 - 04 Spur Gear 93T/104T (F103GT) OP-900
Price:
£4.11
Brand:
Tamiya
Model:
53900
GTIN:
4950344539000
Condition:
Brand New
Available in warehouse
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Upgrade the F103GT drivetrain with finer pitched spurs

The Tamiya 53900 - 04 Spur Gear set provides 93T and 104T spurs for F103GT users looking to refine gear ratios. The finer tooth pitch compared to 0.6 module gears enables more precise ratio choices, helping to tune acceleration and efficiency for competitive runs.

Why molybdenum helps gear performance

Molybdenum is applied to reduce friction across gear teeth, which aids smoother meshing and can reduce power loss in the drivetrain. Properly fitted, these spurs support reliable operation over repeated sessions.

Fitment and pinion compatibility

These spur gears are intended to pair with 0.4 module pinions such as 53101 and are compatible with F103 and C Car chassis variants. That compatibility makes them a practical upgrade when experimenting with different pinion sizes.

 

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Have bought off RCJAZ, for some 6 years,mostly Tamiya parts, they have a great range, good prices, and privide excellent service from Hong Kong

Will the 93T or 104T change my centre of acceleration?

Choosing 104T will typically favour acceleration by increasing final drive ratio, while 93T leans toward higher top speed with the same pinion. Balance choices with motor characteristics.

How do I inspect these gears for wear?

Look for rounding of tooth edges, pitting, or uneven wear. Replace if teeth show significant degradation to avoid damage to pinions and other drivetrain parts.

Can I use aftermarket pinions with these spurs?

Yes, aftermarket 0.4 module pinions are fine as long as they match module and tooth count. Ensure quality machining and check mesh before running.

Do these spurs need special mounting hardware?

They install using the same mounting arrangement as standard F103 spurs. Use the original screws and spacers and verify alignment during installation.

Are there noise differences between 93T and 104T?

Noise levels are more influenced by mesh and wear than tooth count. With correct backlash and clean teeth both sizes should run quietly.

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