Overview
The HPI Racing 77-Tooth Spur Gear (48 Pitch) is a precision-cut drivetrain gear designed for the HPI Blitz and E-Firestorm 1/10-scale short-course and stadium trucks. With 77 teeth and 48 pitch, this spur gear delivers a faster gear ratio for higher top speed compared to the stock spur.
Whether replacing a worn spur or fine-tuning your gear ratio for more punch and speed, this OEM-quality gear delivers smooth, accurate mesh and reliable performance.
Key Features
- 77-tooth count, 48 pitch
- Precision-cut teeth for clean mesh
- OEM HPI Racing replacement
- Durable composite construction
Performance Benefits
- Higher top speed compared to stock spur
- Smooth power transfer between motor and drivetrain
- Reduces drivetrain noise and wear
- Long-lasting durability
Usage Notes
Replace whenever the spur shows worn or chipped teeth, or use as a tuning option for higher top speed. Verify proper mesh with the paper-test method during installation. Apply gear grease before reassembly.
Technical Specs
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Type: Spur Gear
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Tooth Count: 77T
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Pitch: 48
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Quantity: 1 piece
Fitment
Compatible RC vehicles: HPI Blitz, HPI E-Firestorm.
- HPI Firestorm
- HPI E-Firestorm
- Scale: 1:10
What's Included
- (1) HPI Racing 77T 48-Pitch Spur Gear
Summary
Dial in more top-end speed on your Blitz or E-Firestorm with this precision 77T 48-pitch spur gear — a genuine OEM replacement and tuning option.
