3 Brothers RC 4.9" Dual-Stage Anti-Foam Inserts – 1.9" Rim 1 Pair 3bro4.9ds1.9

The 3 Brothers RC 4.9" Dual-Stage Anti-Foam Inserts (3bro4.9ds1.9) are waterproof 3D-printed tire inserts designed for 1.9" rims and 4.9" diameter tires. They fit perfectly with the JConcepts Ruptures and the Vanquish VXT2 tires, making them a purpose-built upgrade for popular competition crawler tire choices.

The dual-stage compound lets you run a very soft tire that still handles superbly on side hills, gripping rocks better than ever — especially in wet conditions. Tapered edges ease mounting and increase contact pressure. Made in the USA with US-sourced materials.

Key Features

• SKU: 3bro4.9ds1.9
• Rim Size: 1.9"
• Tire Size: 4.9" diameter
• Dimensions: 118mm x 37mm
• Fits JConcepts Ruptures and Vanquish VXT2 tires
• Dual-stage compound for progressive support
• Tapered edges for easier mounting and increased contact pressure
• Waterproof — performs identically in all temperatures
• High tensile strength — will not tear
• Made in the USA
• Sold in pairs (2 inserts per package)
• Small 6mm tuning rods compatible if added firmness is needed — sold separately