Church of MO: 2010 KTM 530 EXC

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By John Burns

`Twas 2007 when the KTM 530 EXC was deemed legal for street use in these United States, and while Mary probably wouldn’t want to ride an EXC to Bethlehem, it did represent Christmas to many American dirt riders who’d always wanted a serious dual-sport. All these years later, fuel-injected and more sanitary than ever (and now referred to as 500 EXC though the engine’s always been 510 cc), this one still leads the pack.

Bringing off-road racing to the street

By Dan Paris Dec. 03, 2009
Photos by Dan Paris

Dual-sport bikes, by definition, are masters of none. Traditionally softened, civilized and neutered, they have never turned on hardcore riders. That left dirt bikers scrambling to jump through licensing loopholes to get adequate lighting and license plates strapped to their competition enduro or motocross bikes. In a bold move KTM released its ever-popular four-stroke EXC line with full DOT certification a few years ago. The latest incarnation of that popular breed is the 2010 KTM 530 EXC.If you aren’t familiar with the enduro championship winning EXC formula, here are the basics. The liquid cooled 530 engine actually displaces 510cc and features a four-valve OHC cylinder head and an 11.9:1 compression ratio. That top end breathes though a 39mm Keihin FCR-MX carburetor, while power flows through a wide-ratio six-speed transmission and hydraulic clutch.

KTM’s healthy mill is wrapped in a Cr-Mo frame, with WP forks up front (11.8″ of travel) and KTM’s simple, non-linkage rear suspension (13.2″ of travel). Despite its dual-sport legality, the package is spec’d with appropriate spring and damping rates for off-road racing. In fact, minimal work has been done to make the bike DOT legal. The big differences between the EXC and its off-road cousins lie in DOT approved Metzeler knobby tires, emissions friendly carburetor jetting, taller gearing and …read more

Source:: Church of MO: 2010 KTM 530 EXC


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