There are two major types of roulette wheel, the American roulette wheel and the European roulette wheel. The only significant deference between the two designs is the fact that the American wheel has two zero pockets, single zero (0) and double zero (00). The European wheel only has the single zero pocket. This small difference results in a large difference in the house edge. On a European roulette wheel the house edge is approximately 2.70%, much lower than the American wheel where the house edge is 5.26%.
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