The RC4WD Rock Crusher II X/T 1.9" Scale Tire is the second generation of Rock Crusher tires! Opened lugs, redesigned side tread pattern and X3 compound provide more bite on the rocks. 

Specifications:

• Compound: Advanced X3 Soft
• Outer Diameter: 4.34in / 110mm
• Width: 1.72in / 43.8mm
• Inner Diameter: 1.9in / 48mm
• Each Tire Weight: 3.6oz / 102 g