Seismic’s Description

72mm tall x 45mm wide TANTRUM Wheels
33mm running surface Centerset bearing seat Double-radius profile
5.7 oz. each Sold in sets of FOUR wheels

Poured in Seismics Premium Clear formula: the best beautiful clear urethane on the market smooth, fast, and grippy

Our beloved Cry Baby wheels grew up, went to college, and became the Tantrums: the lightest and most functional freeride wheels of their size on the market!

The 72mm by 45mm Seismic Tantrum is molded around our proprietary weight-saving Energy Conversion (EC) hub the first tall, wide hub seen in longboarding and still second-to-none.

The big, airy, fiber-reinforced hub combines with perfectly-refined proportions and superbly-supported radiused edges for a truly progressive freeride experience:
quick acceleration
slide release and hookup that are always easy to read
vibrant thane lanes
consistent wear