XB12SX

This XB-series streetfighter variant arrived for the 2010 model year as the big-bore CityX-style member of the line. It carried the familiar upright, urban-focused Buell formula into the final phase of the brand’s original run, pairing the short-wheelbase Lightning attitude with practical everyday ergonomics and the distinctive perimeter-brake, fuel-in-frame XB architecture. In the 2010 factory parts catalog and owner/service literature, it appears alongside the other late XB models, confirming that it was part of the final model-year lineup rather than a later revival. Because production of the original Buell motorcycle line ended in late 2009, this model’s market life was brief and tied to the brand’s closing chapter. Enthusiasts tend to view it as one of the last expressions of the air-cooled Thunderstorm XB platform, and as a rare modern-era Buell that blended naked-bike aggression with city-friendly intent.