S&S Next Generation V-Twin: X-Wedge

S&S president Brett Smith states that the new X-Wedge engine is the most important in the company history, other than his grandfather’s original racing endeavors that got S&S started. Evidently, this new engine is the answer to the new tightened EPA requirements, and shows what S&S research & development team is capable of doing in terms of responsible performance from both an air and sound emissions perspective. A departure from the traditional 45-degree v-twin, the X-Wedge is a 56-degree, three-cam, closed-loop fuel-injected, air-cooled v-twin. This all-new engine design features three belt driven cams—two exhaust, one common intake—S&S closed-loop fuel injection, five studs per cylinder, plain bearings, wedge-shaped combustion chambers, automotive-style rockers, one-piece forged crank, and overhead valves. Bore sizes range from 4 1/8” to 4 1/2” and stroke can go from 4 1/8” to 4 3/8”, offering displacement of 110 cubic inches to 139 cubic inches. The X-Wedge will currently pass 2008 ARB and 2010 EPA standards. An upcoming 2007 S&S tour named Project X-Tour will start in February at the Dealers V-Twin Expo and will feature 5 X-Wedge bikes built by Big Dog Motorcycles. Bourget Bike Works, Edmondson Custom Built, Rucker Performance & Cory Ness. Information about the new engine and the 5 bikes being created can be found at this website: www.x-wedge.com.   


2 Responses to “S&S Next Generation V-Twin: X-Wedge”

  1. 1 question Dec 27th, 2006 at 5:59 pm

    hmm- looks like a jap clone motor with a teardrop a/c.

    i originally thought of a warrior motor, but then saw the yamaha mill was actually much nicer looking than the x-wedge.

    wonder if this will compete with harley’s new 5 cam motor.

  2. 2 Joe McGlynn Dec 28th, 2006 at 12:23 pm

    I’m pretty excited about this, I’ve been eager to see the release of this engine. Kudos to S&S.

    I’ve been playing with a design for a board track-inspired bike that is done in a modern style — this would be bitching in that bike.

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