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VehiclesRedcat Racing Ascent-18 BrushlessUpgrades24:1 complete transmission option

24:1 complete transmission option

Redcat Racing Ascent-18 Brushless · RER39150

This is a complete gearbox option with an aluminum housing and stainless-steel gears. The 24:1 version favors slower crawling. INJORA explicitly lists the stock brushless motor as compatible, while excluding the original Redcat 180 brushed motor.

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Parts & installation

Manufacturer documented
Vehicle
Redcat Racing Ascent-18 BrushlessRER39150
Position
center
Change
Factory low-range gearbox to INJORA's 24:1 complete assembly

Parts needed

Per stated vehicle assembly or complete kit
PartQty
ASC18-37UD24:1 complete aluminum and stainless-steel transmission1

INJORA offers ASC18-37UD for this factory-brushless edition and its stock motor as a component option. The original 180 brushed motor is excluded; 24:1 and 13:1 are separate variants.

Installation notes

  • INJORA lists the Ascent-18 Brushless, Scout II Brushless and APEX, and explicitly permits their stock brushless motor.
  • Choose SKU ASC18-37UD, the 24:1 version. ASC18-37AS is a separate 13:1 option.
  • INJORA's advertised 45.83% speed reduction compares 24:1 with its own 13:1 baseline. These factory-brushless editions already use about 20.52:1; do not apply that percentage to them.
  • The package lists one complete transmission. Reuse and inspect the model's motor and mounting hardware; no receiver or battery change is established by this gearbox listing.

Sources

Original manufacturer product or factory instructions
  • ASC18-37UD is 24:1 and ASC18-37AS is 13:1. The stock brushless motor is allowed, the OEM 180 brushed motor is excluded, and 45.83% compares with 13:1.
Original manufacturer product or factory instructions
  • The 20.52:1 set includes a plastic 11T pinion and a motor-shim warning. It is separate from Hot Racing's brass-pinion package.