Big Dog Wolf





Make Model.

Big Dog Wolf




Four Stroke, V-twin


1982.9 cc / 121 cu in
Bore x Stroke 107.95 x 107.95 mm / 4.25 x 4.25 in
Cooling System Air cooled
Compression Ratio 9.9:1
Exhaust Two-onto-two, chrome


Fuel injected


Starting Electric


6-Speed, BDM balance drive
Final Drive Belt
Frame Steel, single downtube

Front Suspension

Telescopic fork

Rear Suspension

Twin sided swingarm, hidden shocks

Front Brakes

Single hydraulic disc

Rear Brakes

Single hydraulic disc
Wheels Aluminium, chrome

Front Tyre

130/60 R23 65V

Rear Tyre

220/50 R20 83V
Rake  40°
Trail 149.9 mm / 5.9 in
Ground Clearance 99.1 mm / 3.9 in

Dry Weight

349 kg / 770 lbs

Fuel Capacity 

17.0 L / 4.5 US gal

The Wolf is the newest canine in the Big Dog lineup. The sleek, 9 1/2 feet long ProStreet is a high-performance, high style package featuring the largest S&S X-Wedge mill of 121ci. As a proprietary engine for Big Dog, you won't find the motor on any other production motorcycle. The Wolf's rear wheel spins via the six-speed tranny, BDM Balance Drive primary, and carbon fiber constructed final drive, which receives its power from the 56-degree 12ci powerplant. The X-Wedge features a three-cam design and a one-piece crank with side-by-side plain bearing rods that drive full skirt pistons in five bolt cylinders and heads. Fuel is delivered via injectors built right into the heads and both closed-loop fuel control and knock control ignition technologies are part of the package, according to S&S Cycle. The 4 1/4-inch bore/stroke combination delivers a 9.9:1 compression ratio, producing a motor with a tremendous amount of linear torque, according to John.