HPI Heavy Duty Spur Gear 43Tx5mm

The HPI Heavy Duty Spur Gear 43T x 5mm (HPI-114587) is a tough metal spur designed to help fine-tune gearing for performance and durability. It forms part of HPI’s range of clutch bells and spur gears that let you balance top speed and acceleration to suit your driving conditions.

As a general guide: more teeth on the clutch bell or fewer teeth on the spur gear increase top speed with slightly reduced acceleration—ideal for smooth surfaces and longer straights. Fewer clutch-bell teeth or a higher-tooth spur gear improve acceleration and torque with slightly less top speed—useful on rough terrain and steep hills.

Key Benefits

• Heavy-duty metal spur gear with 43T x 5mm spec
• Enables precise gearing changes for speed or torque
• Genuine HPI part: HPI-114587

Suggested Compatibility

• HPI Savage XL Octane

Available Sizes

• #108960 – Clutch Bell 14T x 33 x 20 mm (Standard)
• #108962 – Clutch Bell 15T x 33 x 20 mm
• #114587 – Heavy Duty Spur Gear 43T x 5 mm
• #114589 – Heavy Duty Spur Gear 45T x 5 mm
• #111800 – Heavy Duty Spur Gear 47T x 5 mm (Standard)