1.9 foam

Boom Racing Rock Monster RED Silicone Tire Insert 3.5inx0.84in (90x21mm) for 1.9in Mileage Classis / SP Road Tracker (2)

Perfekt for litt tyngre skalabygg

Boom Racing 1.9 Dual 2-Stage Open (Soft) / Closed (Hard) Cell Foam Insert for 4.19in (106mm) RC Crawler Tires (2)

Boom Racing 1.9 Dual Stage Open (Medium) / Closed (Hard) Cell Foam Insert for 4.45in (113mm) RC Crawler Tires (2)

Boom Racing 1.9 Dual Stage Open (Soft) / Closed (Hard) Cell Foam Insert for 4.45in (113mm) RC Crawler Tires (2)

Boom Racing 1.9 Dual 2-Stage Open (Soft) / Closed (Medium) Cell Foams Rock Crawling Inserts for 4.45in (113mm)

Boom Racing 1.9 Dual Stage Open (Medium) / Closed (Hard) Cell Foam Insert for 4.75in (120mm) RC Crawler Tires (2)

Boom Racing 1.9 Dual Stage Open (Soft) / Closed (Medium) Cell Foam Insert for 4.75in (120mm) RC Crawler Tires (2)

Boom Racing 1.9 Dual Stage Open (Soft) / Closed (Hard) Cell Foam Insert for 4.75in (120mm) RC Crawler Tires (2)

Boom Racing Rock Monster YELLOW Silicone Tire Insert 3.31inx0.79in (84x20mm) for 1.9in Mud Terrain Trophy BR-T29A (2)