Gear, Spur 39 Tooth, 64P 3/32" Axle - JK G639

39 Tooth • 64 Pitch • 3/32" Axle • Sold Individually

This JK Products 39-tooth spur gear is designed for high-performance slot car drivetrains using 64-pitch gearing and a 3/32" rear axle.

The 39-tooth size provides a useful gearing option for tuning acceleration, braking, and top speed to suit your motor, tire diameter, chassis setup, and track.

🔧 Specifications

• Product Type: Gear
• Manufacturer: JK Products
• Part Number: G639
• Supplier Reference: G639-6
• Gear Type: Spur
• Tooth Count: 39 Tooth
• Pitch: 64P
• Axle Bore: 3/32"
• Quantity: 1 Gear

🏁 Fine-Tune Your Gearing

Changing spur gear size allows you to adjust the balance between acceleration, braking response, and maximum speed. The 39-tooth gear is a useful choice when dialing in a car for a specific track or motor combination.

🛠️ Compatibility

Designed for slot car chassis using a 3/32" axle and compatible 64-pitch pinion gears.

Always confirm axle size, gear pitch, and available chassis clearance before installation.

Sold individually — price is for one gear.