The S2 used a modified Harley-Davidson Sportster V-twin.

1994 Buell S2 Thunderbolt Pictures

The 1994 Buell S2 Thunderbolt motorcycle handled like no other Harley-powered road machine, and sounded like no other sportbike anywhere.

The S2 hues to Buell's taste for tech-trendy gauges.

Headlights and taillights are flanked by decorative grilles.

Many a rival saw only the S2 Thunderbolt's taillamp,

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