This lowered Lightning variant was added to Buell’s XB lineup for the 2005 model year as a more approachable, shorter-seat-height version of the XB12S. It kept the same basic XB streetfighter formula—lightweight chassis, compact proportions, and Buell’s trademark emphasis on agile handling—but was aimed at riders who wanted the larger 1203cc Thunderstorm-powered Lightning experience in a lower, easier-to-manage package. The ‘cg’ designation identified the lowered setup that distinguished it from the standard XB12S.
The model remained part of Buell’s Lightning range for several years and continued to appear in official Buell VIN documentation and service literature through the 2010 model year. That makes it one of the longer-running XB variations from the brand’s later era. In practice, it sat between the more compact XB9-based models and the taller, more aggressive XB12 variants, giving Buell a factory low-seat option without resorting to an aftermarket conversion.
Enthusiasts generally remember it as one of the more usable and confidence-inspiring Buell XB models, especially for shorter riders who still wanted the distinctive under-seat exhaust, perimeter brake, fuel-in-frame architecture, and stripped-down American sport-standard character that defined the XB family. It is also notable as part of the final generation of Buell motorcycles produced before the brand’s shutdown under Harley-Davidson.