
BamX BX400-U4 Sierra
Key specifications
Overview
Introducing the 2012 BamX BX400-U4 Sierra, a formidable contender in the ATV market that combines rugged performance with user-friendly features, all at an attractive price point of $4,999. Designed for off-road enthusiasts and adventurers, the BX400-U4 Sierra stands out with its striking camouflage color options—green and brown—that allow it to blend seamlessly into the wilderness. With a focus on durability and versatility, this ATV is perfect for those looking to tackle challenging terrains or explore the great outdoors with confidence. Under the hood, the BX400-U4 Sierra is powered by a robust 387cc single-cylinder, four-stroke engine that delivers a respectable 19 horsepower at 5,500 RPM and 25 Nm of torque. This combination ensures that riders can easily navigate steep inclines and rugged trails without sacrificing performance. The automatic gearbox and shaft drive system simplify the riding experience, allowing both seasoned riders and novices to enjoy smooth acceleration and effortless handling. The cooling system, utilizing oil and air, works to maintain optimal engine temperatures, ensuring reliability during extended rides. Whether you're cruising through muddy trails or conquering rocky paths, the BX400-U4 Sierra offers a nimble and responsive ride that won’t let you down. Equipped with an array of features designed for comfort and safety, the BX400-U4 Sierra ensures a thrilling yet secure riding experience. The double A-arm front suspension and swing arm rear suspension offer a balanced ride, absorbing shocks from uneven terrain and providing excellent stability. Meanwhile, the double disc front brakes and single disc rear brakes deliver confident stopping power. With a generous ground clearance of 254 mm and an adjustable seat height of 864 mm, this ATV accommodates a wide range of riders, making it approachable for everyone. Plus, the electric starter adds convenience, allowing for quick and easy ignition on the go. **
Pros
- Powerful Engine: The single-cylinder, four-stroke engine provides excellent torque and horsepower, making it capable of tackling tough trails.
- User-Friendly Features: The automatic gearbox and electric starter enhance accessibility for riders of all skill levels.
- Comfortable Suspension System: The dual suspension setup ensures a smooth ride over rough terrain, contributing to overall rider comfort.
Cons
- Weight: At 266.3 kg (587 pounds), the BX400-U4 Sierra may feel heavy for some riders, particularly during maneuvering.
- Limited Power-to-Weight Ratio: With a power-to-weight ratio of 0.0714 HP/kg, performance may lag compared to lighter, sportier models.
- Fuel Capacity: While the 13.5-liter tank is decent, extended trips might necessitate frequent refueling stops.
Technical details
Source specification data
- Make
- BamX
- Model
- BX400-U4 Sierra
- Price
- S
- $ 4999.
- Prices
- depend on country, taxes, accessories, etc.
- Category
- ATV
- Light
- 12V35W/35W x 2, 12V5W x 2 (front)
- Starter
- Electric
- Electrical
- YTX-20BS battery.
- Color Options
- Green camo, brown camo
- Power
- 19.00 HP (13.9 kW))
- Torque
- 25.00 Nm (2.5 kgf-m or 18.4 ft.lbs) @ 5500 RPM
- Gearbox
- Automatic
- Ignition
- CDI
- Driveline
- CVT Fully Automatic w/Reverse
- Fuel System
- Carburettor
- Bore X Stroke
- 83.0 x 71.6 mm (3.3 x 2.8 inches)
- Compression
- 9.5:1
- Displacement
- 387.00 ccm (23.61 cubic inches)
- Cooling System
- Oil & air
- Engine Details
- Single cylinder, four-stroke
- Lubrication System
- Pressure/Splash
- Transmission Type Final Drive
- Shaft drive (cardan)
- Dry Weight
- 266.3 kg (587.0 pounds)
- Seat Height
- 864 mm (34.0 inches) If adjustable, lowest setting.
- Oil Capacity
- 1.70 litres (0.11 quarts)
- Fuel Capacity
- 13.50 litres (3.57 gallons)
- Ground Clearance
- 254 mm (10.0 inches)
- Power Weight Ratio
- 0.0714 HP/kg
- Rear Tyre
- 25/10-12
- Front Tyre
- 25/8-12
- Rear Brakes
- Single disc
- Front Brakes
- Double disc
- Rear Suspension
- Swing Arm
- Front Suspension
- Double A-Arm