Si-Boards - Breaking the rules on balance boards
Si-Board Balance Board & Ball







All shipping and handling costs are for continental United States. Large items such as board and ball combos ship 5-7 day ground through the US Post Office. Smaller items ship Priority mail through the US Post Office. Contact us if you prefer different shipping.

Please email us for multiple item orders, HI and AK shipments and International orders.

Please note: due to International shipping restrictions the Powder, Surf, Si-zmik and Ultimate Fitness may have additional shipping costs. International Orders with multiple items may come in separate boxes. Download the International Shipping Chart.

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Si-zmik Original (seismic)


The Si-zmik is big and strong just like you. Rock our largest board to full capacity and feel the ground shake. This is the largest balance board you will find! The Si-zmik rides slower and is most suitable for tall riders 5'5" and up. Smaller riders with a wide stance will develop stronger legs compared to taller riders. This is a great board size for learning surfing pop-ups, longboard foot work, total body coordination on your hands and feet, and getting into wide athletic stances. Add our Resistance Band System or Half-Ball for a complete workout. The Si-zmik features an integrated rocker and steel rail secured two inches off the board with urethane blocks. We suggest using the 6.5" Medium, 8.5" Bigs, or 10" super Deluxe ball.

Dimensions: 45" x 19"
Rail Size: 35" x 14"
Ride Stance: 34" - 43"
Board Weight: 15 lbs/6.8 kg
Weight Limit: 400 lbs/182 kg



Price Shipping
Si-zmik board only $319.95 $35.00
Si-zmik w/6.5" ball (beginner) $414.95 $50.00
Si-zmik w 8.5" ball (intermediate) $499.95 $55.00
Si-zmik w/10" ball (advanced and special order) $589.95 $55.00