Overview
The Hot Racing 27T 0.5 Mod Hardened Steel Pinion Gear with 2.3mm bore is made for small-scale Arrma Grom-style power systems that use Mod 0.5 gearing. The hardened steel construction is built for consistent tooth engagement, while the 27-tooth count gives drivers a tuning option for speed, acceleration, and motor load.
Key Features
- 27-tooth Mod 0.5 pinion gear
- 2.3mm bore for compatible small-scale motor shafts
- Hardened steel construction for long gear life
- Designed for Grom applications with compatible motor mounts
- Manufacturer SKU: HRAMSG27M05
Performance Benefits
- Lets drivers tune gearing for acceleration and top speed
- Steel teeth stand up to higher loads than soft alloy gears
- Useful when pairing with Mod 0.5 spur upgrades
Usage Notes
- Confirm shaft diameter before purchase; this gear uses a 2.3mm bore.
- Use with an appropriate motor mount such as compatible Grom upgrade mounts.
- Check mesh and motor temperature after changing pinion size.
Technical Specs
- Brand: Hot Racing
- SKU: HRAMSG27M05
- Type: Upgrade Parts
- Tooth count: 27T
- Pitch/module: 0.5 Mod
- Bore: 2.3mm
- Material: Hardened steel
- Condition: New
Fitment
- Compatible with Arrma Granite Grom, Mojave Grom, Typhon Grom, and similar setups when shaft size and motor mount match.
What's Included
- 1 x Hot Racing 27T 0.5 Mod Hardened Steel Pinion Gear 2.3 Bore
- Factory packaging/documentation when supplied
Summary
Hot Racing HRAMSG27M05 is a 27T steel Mod 0.5 pinion for Grom drivers tuning small-scale Arrma gearing with a 2.3mm motor shaft.
