Rock Crusher Monster 40 Series 3.8" Tires (2) (X4) by RC4WD

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Frederick, MD

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This product was added to our catalog on November 6, 2017.

RC4WD Rock Crusher Monster 40 Series 3.8" Tires. 


  • Advanced X4 Medium Compound

Outer Diameter:
8.26in / 210mm
Width: 3.12in / 79.2mm
Inner Diameter: 3.8in / 96.52mm
Tire Thread Depth: .31in / 8mm
Each Tire Weight: 16.76oz / 475g


  • (2) Rock Crusher 40 3.8" Tires
  • (2) Foams


  • This tire will only fit RC4WD wheel such as BL04N or other manufacturer 40 series specific narrow wheels (Such as Proline 40 Series Cheyenne Narrow Wheel Part PRO2683-01).
  • Due to many different methods to design Tires and Wheels, RC4WD has no control over other manufacturers products and can only guarantee that RC4WD Tires and Wheels work together. In some cases RC4WD Wheels and Tires will work with other brand Wheels and Tires, but RC4WD does not guarantee the results.
  • Rock Crusher is designed to run truck such as Traxxas Revo, T-Maxx, HPI Savage, Tamiya Clod Buster, TXT-1, Juggernaut. (You will need 40 series wheels in order to run these Tires)