The Crazy Crawler LaserFoam "Rupture FT Pro" tire insert set is a modular tire insert option developed for competition and performance focused drivers running JConcepts Ruptures 1.9 Tires (JCO3053-02).

The FT Pro system uses three LaserFoam rings in each tire. The red "Spur Master" is the ring that provides the lateral stability. The Spur Master insert is used on the sides of the foam insert while the Heavy Duty ring is sandwiched in the middle.

NOTE: This foam package is intended to fit the JConcepts Ruptures 1.9 Tires (JCO3053-02).

Specifications:
Material: Heavy Duty (medium)
Outside Diameter (serrated end): 4.45"/4.57" (114mm/116mm)
Inner Diameter: 1.9" (50mm)
Width: 50mm (Two Spur Masters (10mm each) and one Heavy Duty ring (30mm) per tire.)
Weight: 15g ea 

Includes:

• (4) Sets of foam inserts to complete four JConcepts Ruptures 1.9 Tires (JCO3053-02)