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2006 Suzuki Boulevard S40 Engine Right View

<i>The big air-cooled 652cc single makes very tractable power, which helps to make the bike easy to ride. It begins to feel overtaxed when you try to cruise at 75-mph.</i>
2006 Suzuki Boulevard S40 Motorcycle Road Test: The Savage Turns 20

The big air-cooled 652cc single makes very tractable power, which helps to make the bike easy to ride. It begins to feel overtaxed when you try to cruise at 75-mph.  View Related Article