PRO647900 Rock-Tek Tire Weight System for 1.9" Crawler Wheels

Pro-Line Rock-Tek Tire Weight System for 1.9" Crawler Wheels (2)

Part Number: PRO647900

The Pro-Line Rock-Tek Tire Weight System is an innovative performance upgrade for 1.9" RC rock crawlers, designed to lower the vehicle's center of gravity without the rotating-mass penalty of traditional wheel weights.

Unlike conventional brass wheel weights that rotate with the wheel, Rock-Tek uses a magnetically controlled, bearing-supported system that keeps the brass weight positioned near bottom-dead-center while the wheel rotates around it. This places weight extremely low in the vehicle for improved climbing stability, side-hill performance, and overall crawler balance.

Designed for most 1.9" crawler wheels approximately 0.8" wide and standard crawler tires in the 4.75"–4.9" diameter range.

Features

• Innovative 1.9" RC Crawler Tire Weight System
• Magnetically Controlled Brass Weights
• Bearing-Supported Design
• Keeps Weight Near Bottom-Dead-Center
• Reduces Effective Rotating Mass vs. Traditional Wheel Weights
• Lowers Center of Gravity
• Improves Climbing & Side-Hill Stability
• Hidden Inside the Tire for Clean Scale Appearance
• Tunable Weight Configuration
• 108g Brass Weight Pairs
• N35 Grade Magnets
• Soft Open-Cell Outer Foams Included
• Designed for Most 0.8" Wide 1.9" Crawler Wheels
• Optimized for Pro-Line 1.9" Beadlock Wheels

Includes

• (2) Brass Weight Pairs – 108g per pair
• (2) Composite Rock-Tek Housings
• (2) Sealed Bearings
• (12) N35 Grade Magnets
• (2) Soft Outer Open-Cell Foams
• Magnet Mounting Hardware for:
  • Axial SCX10 III Portal Knuckles
  • Axial SCX10 III Straight Knuckles
  • Traxxas TRX-4 Front Knuckles

Compatibility

Designed for standard 1.9" crawler tires with approximately 4.75"–4.9" outside diameter and most 1.9" crawler wheels with approximately 0.8" width.

Mounting hardware is included specifically for SCX10 III portal/straight knuckles and TRX-4 front knuckles.

⚠️ IMPORTANT – CHECK FITMENT BEFORE PURCHASE

THIS SYSTEM REQUIRES ADEQUATE INTERNAL WHEEL AND TIRE CLEARANCE.

Compatibility should not be determined by wheel diameter alone. Wheel design, internal clearance, tire dimensions, knuckle configuration, and axle setup can affect fitment.

Please verify your wheel and vehicle configuration before purchasing.

Important

THIS LISTING IS FOR THE PRO-LINE ROCK-TEK TIRE WEIGHT SYSTEM ONLY.

Wheels, tires, vehicle, axles, and other accessories shown in pictures are NOT included unless specifically listed above.

Pictures are for reference only.