Hubba Bubba Max Strawberry-Watermelon Bubble Gum 18/5-Pcs; Hubba Bubba Max 18Pks Strawberry-Watermelon; SEE SHIPPING POLICY FOR SUMMER. There are 25 calories in 1 piece ( oz) of Hubba Bubba Outrageous Original or Strawberry Watermelon Max Bubble Gum. You'd need to walk 7 minutes to. Strawberry Watermelon bubble gum with a mix of mouth-watering strawberry and watermelon flavors. Have some fun with Hubba Bubba Bubble Gum. The fruitier, sour side of Hubba Bubba Bubble Gum packs big sour blue raspberry flavor. Blowing big green bubbles!