HPI Pinion Gear 8T (Steel/Micro Rs4)

The HPI Pinion Gear 8T (Steel) lets you fine‑tune the balance between acceleration and top speed on small‑scale on‑road models. This tough metal 8‑tooth pinion includes a set screw for securing it to the motor shaft. Part number HPI-72480 is noted as discontinued by the manufacturer, with suggested replacements listed below.

Key Details

• 8‑tooth steel pinion for durable, consistent drivetrain performance
• Includes set screw for a secure fit on the motor shaft
• Tune performance: smaller pinion for quicker acceleration; larger pinion for higher top speed
• Suggested compatibility: HPI Micro RS4
• Discontinued item; suggested replacements: #114113, #72481

Also referenced in the same range: #72481 (9T), #72482 (10T), #72483 (11T), #72484 (12T), and #72485 (13T).