Big Dog Ridgeback




Make Model.

Big Dog Ridgeback




Four stroke, 45° V-Twin, OHV, 2 valves per cylinder.


1916 cc / 117 cu-in
Bore x Stroke 104.8 x 111.1 mm / 4 x 4 ⅜"
Compression Ratio 9.6:1
Cooling System Air cooled


Two-into-two, chrome


S&S carburetor


Electronic single fire


270 cca




6 Speed, Baker

Final Drive

Frame 8" Downtube, 4" backbone
Rake 39°

Front Suspension

Ĝ41 mm Telescopic fork

Rear Suspension

None, spring loaded seat

Front Brakes

Single disc PM, 4 piston caliper, differential bore

Rear Brakes

Single disc PM, 4 piston caliper



Front Tyre


Rear Tyre

Dimensions Length: 2719 mm / 107 in
Wheelbase 2093 mm / 82.5 in
Seat Height 622 mm / 24.5 in

Dry Weight

308 kg / 680 lbs

Fuel Capacity 

14.4 L / 3.8 US gal

Fuel Reserve

1.5 L / 0.4 US gal

Oil Capacity

3.3 L / 0.4 US gal

The Ridgeback has returned to Big Dog's Chopper line with a vengeance after not making the cut last year. Who says the fat tire revolution is dead? Not Big Dog. In fact, it's going wider than ever before on the Ridgeback, a whopping 330mm low-profile rear tire. For the rigid frame to accommodate the foot wide rear, BDM had to do a little redesigning. The 8-inch oversized down tubes are an inch bigger in comparison to last year's Chopper and the 4-inch oversized backbone measures an inch bigger as well. At the opposite end to the 330 mm rear up the 82.5-inch wheelbase is a 21-inch custom-designed front wheel sitting way out on a 12-inch oversized fork. The classic chopper-style rake, a healthy 39 degrees, is up two degrees from BDM's '07 Chopper. Overall, the belt-driven 680 lb bike is an inch short of nine feet.

"The Ridgeback buyer is someone looking for the most rebellious design and hardcore looks in a rigid custom cruiser and the fattest tire on the market combined with tremendous excitement, performance, and handling," said Messer.