Kyosho Inferno NEO ST 3.0

Stock is as the vehicle ships. Calculated is worked from the stock figures on this page rather than stored beside them, so the two cannot drift apart. Derived is worked out from gear tooth counts the maker publishes rather than printed as a ratio; the notes below say how. Not applicable means the vehicle does not come with it, like the motor on a roller or the tires on a race kit, or does not have one, like a KV rating on a brushed motor. Not published means it exists but no source we could find prints it.

In our catalog, half of 1/8 truggies run between 14.4:1 and 16.5:1 on stock gearing; this one is 15.9:1. What's a normal final drive for your RC?

Gearing parts

Tooth counts are the ones in the specifications above. Pitch is given as metric module (Mod 1, Mod 0.8) or diametral pitch (32P, 48P). They are different standards and are not interchangeable, even where the numbers look close. Bore is the pinion’s hole, listed separately from the motor shaft. Linked part numbers go to the maker's or official distributor's page for that part.

Buying a new pinion or spur? Check what’s fitted first: Why your RC's gear specs might not add up

How these numbers were settled

Ready-to-run nitro stadium truck with a KE25SP engine, so KV and cell rating do not apply.

• Kyosho's Technical Data prints 'Gear Ratio 14.6：1', which does not match the gears Kyosho lists for this truck.
• The spare parts list (p. 43 and 42) names a 13T clutch bell (97035-13), the IFW125 48T spur, and the IS117 43T bevel gear with the IS118 10T drive bevel, and the product's parts page lists the same 13T bell, a 48T main gear and the 43T/10T pair.
• Those tooth counts give 48/13 x 43/10 = 15.88, which is shown here; the printed 14.6 would need a different spur or clutch bell.
• The Technical Data gives different front and rear tires, 'Φ148×66mm / Φ143×66mm', while the spare parts list names one tire (IST112) for both ends, so the tire size is left blank.
• The maintenance manual (p. 5) fills all three diffs with #5000 silicone oil.

Documents

• ManualInstruction manual (Kyosho PDF) (opens in a new tab)
• ManualMaintenance manual (Kyosho PDF) (opens in a new tab)
• Exploded viewExploded view (Kyosho PDF) (opens in a new tab)
• Parts listSpare and option parts list (Kyosho PDF) (opens in a new tab)

Sources

• 33016rc.kyosho.com (opens in a new tab)
• Manual (PDF)kyosho.com (opens in a new tab)
• Manual (PDF)kyosho.com (opens in a new tab)
• 1rc.kyosho.com (opens in a new tab)
• 97035-13rc.kyosho.com (opens in a new tab)
• ifw125rc.kyosho.com (opens in a new tab)
• is013rc.kyosho.com (opens in a new tab)
• is117rc.kyosho.com (opens in a new tab)
• is118rc.kyosho.com (opens in a new tab)
• ist112rc.kyosho.com (opens in a new tab)

Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.

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