Rock Monster™ 1.9″ Green Foam Insert 108x30mm / 4.25″x1.18″ (2)

This is a pair of Rock Monster™ foam inserts for 1.9″ tires. Molded green (super soft) foam inserts with Boom Racing logo on one side.

Measure your tire’s inner height and width (not the outer dimensions). Choose the foam that matches those inner measurements.

Size:

Height: 108mm / 4.25″
Width: 30mm / 1.18″
For 1.9″ tires

Fits:
AGGRESSOR™ 1.9″ GEKKO™ 4.75 x 1.75 / 120×44.5mm #BRTR19009