
Pre-XB
Buell's 1996 sportbike was the S2T Thunderbolt (Sportster engine, tube frame)
XB-series launched 2002 with new perimeter-frame design
Buell's XB-series ran 2002-2009 — XB9R Firebolt (984cc Sportster) and XB12R Firebolt (1203cc Sportster) faired sportbikes; XB9S/XB12S Lightning naked variants; XB12X Ulysses adventure variant. Erik Buell's signature designs: fuel-in-frame, ZTL perimeter front brake, mass centralisation. Killed in 2009 when Harley-Davidson shut Buell down to focus on cruisers. Cult bikes now.

Buell's 1996 sportbike was the S2T Thunderbolt (Sportster engine, tube frame)
XB-series launched 2002 with new perimeter-frame design

1203cc air-cooled 45° Harley Sportster V-twin
Perimeter ZTL front brake, fuel-in-frame, mass centralisation philosophy
Harley-Davidson shut Buell in 2009 — focused on cruiser core business
Buell relaunched 2021 under new ownership but with totally different lineup
New Buell (2021+) has Hammerhead 1190 / Super-Cruiser, no XB-series
The Erik Buell era is permanently over
Every figure on this page is from a published manufacturer spec sheet or a reputable review publication. No press junkets, no opinions in the spec data. Inflation calculated using Bank of England's CPI tool.