HPI Racing Steel Pinion Gear 10 Tooth Micro RS4 (ONLINE ORDER ONLY)

Overview

The HPI Racing Steel 10T Pinion Gear is a genuine replacement steel pinion gear designed for the HPI Micro RS4 1/18 scale touring car. The steel construction provides longer service life under high-rpm electric motor use compared to a plastic pinion.

This direct-fit replacement is ideal for refreshing worn pinions and biasing gear ratio toward more torque (vs. higher-tooth pinions).

Key Features

• Genuine HPI Racing Micro RS4 replacement
• Steel construction for long service life
• 10 tooth count — torque-biased
• Direct factory fit
• Precision-cut teeth

Performance Benefits

• Stronger acceleration and torque
• Long-lasting steel construction
• Reliable, smooth meshing

Usage Notes

• Set proper gear mesh — slight backlash
• Replace pinion and spur as a pair when worn

Technical Specs

• Type: Steel Pinion Gear
• Tooth Count: 10T
• Material: Steel
• Manufacturer: HPI Racing

Fitment

• HPI Micro RS4 (1/18 Scale Touring Car)

What's Included

• (1) HPI Racing Steel 10T Pinion Gear for Micro RS4

Summary

A torque-biased steel pinion replacement that lasts longer than stock plastic in the Micro RS4.