You can use a wide variety of Estes standard engines to launch the Wizard

from a 1-ton to a large 18-ton tractor

buying a new body

The dustproof receiver box and easy access battery door provide plenty of space for your components

Four body tubes per package

Pit Bull Tires - Dirty Richard 1.9" Single Stage Foam Inserts for Crawlers, Medium, 98x47.6x32 (2) Storage & Transportation You can use a wideFeatures: Quality Foam Durable Fits Pit Bull RC tires perfectly so now you have replacement options directly from Pit Bull R C. Stylish they look good for the brief moments you get to appreciate them before you install them. Specifications: Outer Diameter: 3. 85 Rim: 1. 9