This is a closed cell foam for the 1.9 Mud Terrain Trophy tires.
The closed cell foam provides sidewall strength.
Size:
For 1.9" Tire
Height: 84mm
Width: 20mm
Package total weight: 25.00 grams (incl. packaging)
Factory description: Boom Racing 1.9 Closed Cell Foam Insert (84x20mm) for Mud Terrain Trophy BR-T29A Tire (2)
Manufactured by Boom Racing
Manufacturer number: BRTR29393