This GPM SCJ1906H wheel and tire assembly is an RC-scale upgrade intended for 1/10 crawlers. The machined aluminum 6-spoke wheel is made from a lightweight, high tensile material and is paired with a deep-groove crawler tire pattern to improve grip on steep or uneven terrain. The wheel accepts a 12mm hex and a 5mm shaft hole setup commonly found on many 1/10 scale rock crawlers.
A key feature is the built-in brass pendulum weight inside each wheel, supplied as a 100g insert. The added mass is held low in the wheel, increasing downward force at the contact patch to help the rig hold lines and climb at steeper angles without relying on electronic ballast. The tire’s deep lugs work together with the weight to enhance traction rather than changing suspension or gearing.
Dimensions and measured weights are provided for tuning decisions: outer diameter 115mm, inner diameter 48.26mm (1.9"), tire width 40mm, wheel hex size 12mm, single wheel weight (without brass) 172g, single brass weight 100g. Use these values when calculating unsprung mass, gearing, or when choosing shock valving for preserved crawl characteristics.
Fitment notes: designed for 1/10 scale crawlers using 1.9" tires with 12mm hex hubs and 5mm shaft hole compatibility. Verify hub and hex standards on your chassis before fitting. The package ships with two assembled wheel-and-tire units each containing the 100g brass weight insert.
This wheel-and-tire set targets drivers seeking mechanical weight and tread improvement without altering drivetrain components, offering a straightforward way to increase low-speed traction for scale crawling setups.
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