JIUSI WB12PRO 21T Motor Gear
JIUSI WB12PRO 21T Motor Gear
JIUSI WB12PRO 21T Motor Gear
JIUSI WB12PRO 21T Motor Gear

JIUSI WB12PRO 21T Motor Gear

Regular price ¥1,600
Sale price ¥1,600 Regular price
Unit price
JIUSI WB12PRO 21T Motor Gear

JIUSI WB12PRO 21T Motor Gear

Regular price ¥1,600
Sale price ¥1,600 Regular price
Unit price
DESCRIPTION
SHIPPING & RETURN

Product Overview

Brand: JIUSI
Part Number: 16042-1
Product Name: 21T Motor Gear
Type: Motor Pinion Gear
Tooth Count: 21 Teeth
Compatible Models:
• WB12PRO Series

Material: Hardened Steel
Pitch: Standard RC Motor Pitch

Compatibility

Vehicle Model Motor Type Compatibility
WB12PRO Standard Brushed/Brushless Direct Fit

Performance & Maintenance Benefits

Performance Improvements

  • Optimized gear ratio for balanced speed and torque
  • Smooth power transmission to drivetrain
  • Reduced gear mesh noise and vibration
  • Enhanced acceleration characteristics

Maintenance Advantages

  • Hardened steel construction for longevity
  • Easy installation and removal
  • Compatible with standard motor shafts
  • Reduced wear on spur gear

Key Features

Tooth Count
21 Teeth
Material
Hardened Steel
Bore Size
Standard Motor Shaft
Profile
Precision Machined
  • Precision-machined teeth for optimal gear mesh
  • Heat-treated for maximum durability
  • Standard pitch compatible with stock spur gears
  • Includes set screw for secure motor shaft attachment

When to Replace

Regular Inspection Points

  • Check for worn or chipped teeth
  • Inspect gear mesh with spur gear
  • Verify secure attachment to motor shaft
  • Listen for unusual gear noise during operation

Performance Indicators

  • Increased gear noise or grinding sounds
  • Reduced power transmission efficiency
  • Inconsistent acceleration response
  • Visible wear on gear teeth
Tuning Tip: Different tooth count pinion gears allow you to adjust your vehicle's speed and torque characteristics for various driving conditions.

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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.

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