Pro-Line Rock-Tek Weight System for 1.9in Crawler Wheels RC Tyre - PRO647900

The Pro-Line Rock-Tek Tire Weight System (PRO647900) is a crawler accessory designed to add internal ballast weight to 1.9" crawler wheels, improving traction and stability on technical rock crawling terrain. By mounting weight inside the tyre rather than on the chassis, the system lowers the effective rotational mass distribution and keeps the wheel planted on uneven surfaces. It's a practical fitment upgrade for RC crawlers running 1.9" wheels who need more consistent grip on loose rock, gravel, and steep inclines.

Key Features

• Designed specifically for 1.9" crawler wheels — confirm your wheel diameter before purchasing
• Internal ballast placement keeps weight low and close to the contact patch for improved wheel-down traction
• Allows weight tuning without modifying chassis balance or affecting ground clearance
• Compatible with standard 1.9" beadlock and non-beadlock crawler wheel setups
• Pro-Line PRO647900 part number for precise identification when ordering

Compatible With

• 1.9" RC crawler wheels (beadlock and standard styles)
• Pro-Line 1.9" crawler wheel range
• Axial SCX10 series running 1.9" wheels
• Traxxas TRX-4 running 1.9" wheels
• RC4WD and similar 1.9" crawler wheel platforms