Big Dog K-9 vs American IronHorse Slammer Base (2011)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Big Dog K-9stacks up against the American IronHorse Slammer Base. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecBig Dog K-9American IronHorse Slammer Base
Model year20112010
Price$29,900
Engine1917 cc1917 cc
Horsepower110 hp
Weight318 kg320 kg
Seat height24 mm25 mm
Fuel capacity4.4 L3.5 L
Fuel typepetrolpetrol
Transmission6-speed6-speed
Front brakesSingle disc. 4-piston Diff boreSingle disc. 4-piston polished calipers
Rear brakesSingle disc. 4-pistonSingle disc. 4-piston polished calipers
TiresMH90-21 / 300/35-R18 120/80-R21 / 300/35-VR18

Big Dog K-9 vs American IronHorse Slammer Base — which should you buy?

Picking between the Big Dog K-9 and the American IronHorse Slammer Base usually comes down to the numbers you care about most. On paper, the Big Dog K-9 brings its published horsepower in a 318 kg package, while the American IronHorse Slammer Base counters with 110 hp at 320 kg.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: