Kymco MXU 400 vs BamX BX400-U4 Sierra (2012)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Kymco MXU 400stacks up against the BamX BX400-U4 Sierra. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecKymco MXU 400BamX BX400-U4 Sierra
Model year20102012
Price$4,999
Engine367 cc387 cc
Horsepower19 hp
Torque25 Nm
Weight306 kg266 kg
Seat height33 mm34 mm
Fuel capacity4.5 L3.6 L
Fuel typepetrolpetrol
TransmissionAutomaticAutomatic
Front brakesSingle discDouble disc
Rear brakesSingle discSingle disc
Tires25/8-12 / 25/10-12 25/8-12 / 25/10-12

Kymco MXU 400 vs BamX BX400-U4 Sierra — which should you buy?

Picking between the Kymco MXU 400 and the BamX BX400-U4 Sierra usually comes down to the numbers you care about most. On paper, the Kymco MXU 400 brings its published horsepower in a 306 kg package, while the BamX BX400-U4 Sierra counters with 19 hp at 266 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: