Buchholz Custom's wild Buell X1 mashup

You don’t often see Buell-based customs, and when you do, they’re invariably of the streetfighter genre. So it’s good to see someone trying something different with a Buell-powered bike. This machine has just been finished by the German company Buchholz Custom, and it’s based on the Buell X1 engine—a 1200 cc unit originally destined for the Harley Sportster range. At first glance, it’s old technology—Harley’s familiar air-cooled pushrod V-twin—but Erik Buell gave the X1 his 'Thunderstorm' cylinder heads, with big valves, heavy port work and reshaped combustion chambers. That means a power output of around 95 bhp, a 60% increase...