Mountaineer

Description: This high-performance electric bike blurs the line between bicycle and motorbike. Outfitted with a powerful motor exceeding 750 watts and capable of reaching speeds well over 28 mph (45 km/h), it operates beyond the typical Class 1, 2, or 3 e-bike categories. Designed for off-road enthusiasts and speed seekers, it features a torque-heavy mid-drive or hub motor, full suspension, fat tires, and a long-range high-capacity battery — often 52V or higher — capable of powering extended rides or steep hill climbs with ease. Built for performance, not regulation, this e-bike often includes moto-style throttles, custom ride modes, and advanced hydraulic braking systems to safely manage its speed and weight. While it may resemble a standard e-bike in form, its capability places it in a grey zone — often regulated as a moped or motor vehicle in many regions. Helmets, licenses, and off-road-only use may be required, depending on local laws. 

Key Features

STEP OVER FRAME DRAWING

STEP THRU FRAME DRAWING

PROGRAMMABLE DISPLAY

The Bigstone C900 features a fully programmable display, allowing you to customize power settings for an enhanced riding experience.

DUAL 1500-WATT MOTORS

60-Volt 1500-Watt Hengtai motors with a maximum peak power of 2600-watts per motor, enabling riders to exert total control and conquer diverse terrain with ease.

BLACKCAT PUNCTURE RESISTANT TIRES

Discover superior performance and reliability with advanced hybrid Blackcat tires, built to handle challenging terrain with a robust puncture-resistant structure and high-speed rated design. These high-quality tires are wrapped around our extra strength double-wall aluminum alloy wheel and integrated 12-gauge spokes in the front and 10-gauge spokes in the rear for added strength to enable confident riding.

• 6061 Aluminum Alloy Frame with 17.5-inch Full Frame Suspension with RockShox with 190 x 45mm of Travel & Rear Rack Battery and Controller Box
• 26” x 4” Blackcat Puncture-Resistant Tires also offered in 24″ x 4″ Blackcat Puncture-Resistant Tires 
• Double Wall Aluminum Alloy Rims in Black
• 60 Volt
• Dual 3A Chargers
• Dual 1500-watt Hengtai Hub Motors with a max peak power of 2600-watts per motor 
•  25 ah & 15 ah Samsung 21700 Lithium-ion Batteries/ 1500-watt hours and 900-watt hours for a combine of 2400-watt hours- New upgraded slimmer style rear rack battery
• Battery comes with BMS (Battery Management System)
• Dual 45-amp Controllers
• Bigstone C900 Programmable LCD Color Display
•  Dual Crown Fork with adjustable Air Suspension 100 mm of Travel for 24-inch and 120mm of travel for 26-inch
• Promax Suspension Seat Post
• Shimano Alivio 9 Speed
• Tektro E3940 Quad Piston Front and Rear Hydraulic Disc Brakes
• Front and Rear Aluminum Alloy Fenders
• 58T Crank 
• Torque-Cadence Combo
• Rear Cassette 11-13-15-17-20-23-26-30-34T
• Front and Rear 203mm Rotors
• Upgraded Front Large and Brighter LED Light with Auto Sensor
• Rear LED Light with Brake Light & Turn Signals
  
• Half Twist Throttle (right side) with Velo Grips
• 9 Levels of Pedal Assist
• Adjustable Kickstand
• Bike ships as a Class 2 with a top speed of 20 mph but can be unlocked to a speed of 40+ mph
• Range: 85 plus miles on a full charge in low pedal assist
• Max Speed: 20 mph (locked) 40+ mph (unlocked)
• Max Load: 400lbs

Regulations

Before operating a 1000-WATT plus electric bike, it is essential to check with local authorities to ensure compliance with laws and regulations in your area.

Key Considerations

Registration

You may be required to register your electric bike with the relevant authorities.

Insurance

Check if insurance is mandatory to operate your electric bike in your area.

Licensing

You may need a license to operate your electric bike.

Permitted Areas of Operation

Be aware that electric bikes may not be allowed on:

• Bike paths
• Trails
• Bike lanes

Failure to Comply

Non-compliance with local laws and regulations may result in fines, penalties, or other consequences.

Take Action

Verify the specific requirements for operating a 1000-WATT plus electric bike in your area before using the product.