These are the known mechanical and performance specifications for your 2012 BamX BX400-U4 Sierra.
ModelBamX BX400-U4 Sierra
CostUS$ 4999. Prices depend on country, taxes, accessories, etc.
Displacement387.00 ccm (23.61 cubic inches)
DetailsSingle cylinder, four-stroke
Bore/Stroke83.0 x 71.6 mm (3.3 x 2.8 inches)
CoolingOil & air
Final DriveShaft drive (cardan)
DrivelineCVT Fully Automatic w/Reverse
Horespower19.00 HP (13.9 kW)
Torque25.00 Nm (2.5 kgf-m or 18.4 ft.lbs)
Fuel Economy & Polution
Fuel Capacity13.50 litres (3.57 gallons)
Front SuspensionDouble A-Arm
Rear SuspensionSwing Arm
Seat Height864 mm (34.0 inches) If adjustable, lowest setting.
Alt. Seat Height
Ground Clearance254 mm (10.0 inches)
Wheelbase1,245 mm (49.0 inches)
Dry Weight266.3 kg (587.0 pounds)
Wheels & Brakes
Front BrakesDouble disc
Front Brake Diameter
Rear BrakesSingle disc
Rear Brake Diameter
It appears you're interested in specifications for the BamX BX400-U4 Sierra. This ATV model is powered by a Single cylinder, four-stroke engine with 387.00 ccm (23.61 cubic inches) of actual displacement before 9.5:1 compression. Fueling is metered via Carburettor allowing this machine to produce its 19.00 HP (13.9 kW) horsepower and 25.00 Nm (2.5 kgf-m or 18.4 ft.lbs) torque. According to our records engine heat of the BamX BX400-U4 Sierra is moderated by Oil & air. You'll need to get familiar with the Automatic transmission and pay attention to final drive Shaft drive (cardan) maintainence. Our best information shows that the front tire size is 25/8-12 and the rear is 25/10-12 . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc front brakes and Single disc rear brakes. The BamX BX400-U4 Sierra was launched in 2012, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.