Traxxas Nitro Slash

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. 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.

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.

How these numbers were settled

Nitro, powered by a TRX 3.3 engine, so there is no KV rating or cell count and the electric no-load speed cannot be worked out.

• The owner's manual final gear ratio chart (p. 29) marks a 20-tooth clutch bell on the 72-tooth spur, 10.13:1, as stock gearing.
• The product page prints 'Gear Ratio (Internal): 2.81', the ratio after the spur in the Nitro Magnum 281 transmission, and 72 / 20 x 2.81 = 10.12 agrees with the chart.
• The parts list sets the 20T clutch bell (4120) and 72T spur (4472) in regular type as supplied, and both part pages list the Nitro Slash as a stock fitment.
• The stock tire is Traxxas's SCT off-road racing tire (5871), which the parts list sizes at 4.3 x 1.7 in, so 109 mm.
• The 50+ mph figure is Traxxas's own claim for the truck.

Documents

• ManualOwner's manual, Nitro Slash 44056-3 (Traxxas PDF) (opens in a new tab)Gear chart p. 29
• Gearing chartFinal gear ratio chart (in the owner's manual) (opens in a new tab)p. 29
• Parts listParts list, 44056-3 (Traxxas PDF) (opens in a new tab)Spur gears, clutch bells
• Exploded viewExploded view, transmission assembly (Traxxas JPG) (opens in a new tab)

Sources

• nitro-slash-44056-3traxxas.com (opens in a new tab)
• Manual (PDF)traxxas.com (opens in a new tab)
• Manual (PDF)traxxas.com (opens in a new tab)
• 44056-3_Nitro-slash-Explode…traxxas.com (opens in a new tab)
• 4120-20-tooth-steel-clutch-…traxxas.com (opens in a new tab)
• 4472-72-tooth-spur-gear-32-…traxxas.com (opens in a new tab)
• 1654-12-mm-hex-wheel-hubs-2traxxas.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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