Performance Advisory: Granite Grom 1/18th

- The full article was originally published on Castle -

FOR SETUPS USING ANYTHING OTHER THAN STOCK PINION, USE ONE OF THE FOLLOWING OPTIONAL MOTOR MOUNT PACKAGES:

ARRMA ARA320744 Motor Mount Set (8) for fine-tuning of the gear ratio using different sized pinions:

https://www.arrma-rc.com/en/product/motor-mount-set-8/ARA320744.html

Hot Racing GRM18A06 Aluminum Adjustable 16-30T Motor Mount (Grom) allows for a wider range of gear ratio options:

https://www.amazon.com/Hot-Racing-GRM18A06-Aluminum-Adjustable/dp/B0CTMZV4BV

Hot Racing GRM18V01 Aluminum Motor Mount 16- 27T (Grom) for Stock 59T Spur gear, pinion can be use 16T to 27T:

https://store.hot-racing.com/product-page/grm18v01-aluminum-motor-mount-16-27t-grom

At Castle, we understand that your vehicle’s performance is a top priority, and we’re dedicated to ensuring that every upgrade enhances both reliability and power. By making this small adjustment, you’re not only safeguarding your motor from potential failure but also unlocking the full potential of your Castle-powered Arrma Grom. We’re here to support your passion and investment every step of the way!