A comfortable electric bike suited for cruisers and commuters. The Surface 604 500W Big Sky Cruising Electric Bike has a powerful 500W engine and a 48V 14ah battery that can be changed to a 20ah battery. It also has a suspension fork, an adjustable stem, a built-in rear rack, front and rear fenders, and LED lights to make riding smooth. It’s also equipped with an incredibly strong 500W hub motor (peaking at 750W). With a torque sensor and throttle on demand, the Big Sky is ideal for hill climbers who might use a little additional kick. We coupled all that power with an industry-leading 12 mosfet 25A controller, allowing the Big Sky to offer unparalleled torque and speed. Be aware of other motorcyclists when you pass them quickly.
What Our Experts Think
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Powerful Motor: Equipped with a 500W Bafang geared hub motor (peaking at 750W), delivering robust performance for various terrains.
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Extended Range: Features a 48V 12Ah Samsung lithium-ion battery, offering up to 45 miles (72 km) per charge. An optional 20Ah battery extends the range up to 65 miles (105 km).
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Comfortable Design: High-step cruiser frame with ergonomic handlebars and a comfortable saddle ensures a relaxed and enjoyable ride
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Advanced Features: Includes torque sensor for responsive pedal assist, thumb throttle, integrated front and rear LED lights, fenders, and rear rack.
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User-Friendly Display: Large color LCD display with USB charging port provides essential ride information at a glance.
Q&A
Q: What is the Surface 604 Big Sky Electric Bike?
A: The Big Sky is a high-step cruiser e-bike designed for urban commuting and leisure rides, combining a powerful motor with a sleek, elegant frame
Q: What are the motor and battery specifications?
A: It features a 500W Bafang geared hub motor (peaks at 750W) and offers battery options of 48V 12Ah or 48V 20Ah Samsung lithium-ion batteries.
Q: What is the range and top speed?
A: The 12Ah battery provides up to 45 miles (72 km) per charge, while the 20Ah battery extends the range up to 65 miles (105 km). The bike has a top speed of 20 mph (32 km/h) and can be unlocked to 28 mph (45 km/h) for Class 3 performance.
Q: What is the weight capacity and frame design?
A: The bike supports a maximum weight capacity of 285 lbs (129 kg) and features a high-step frame design for added stability and performance.
Q: What is the price?
A: The Big Sky is priced at $999 USD for the 12Ah battery version and $1,899 USD for the 20Ah battery version.
Maintenance Tips
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Battery Care: Charge the 48V 12Ah battery regularly, avoiding overcharging. Store in a cool, dry place to maintain battery health.
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Tire Maintenance: Check the 27.5" x 2.4" Innova tires for proper pressure and inspect for wear or damage regularly.
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Brake System: Inspect the Tektro Auriga E350 hydraulic disc brakes with 180mm rotors for wear and ensure they respond effectively.
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Drivetrain Upkeep: Clean and lubricate the Shimano Alivio 9-speed drivetrain periodically to ensure smooth shifting and extend component lifespan.
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Motor and Electrical Components: Periodically inspect the Bafang 500W hub motor and associated wiring for signs of wear or damage. Address any issues promptly to maintain reliable motor performance.
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Display and Controls: Keep the display clean and dry. Avoid direct water exposure to prevent damage.
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Storage Recommendations: When not in use, store the bike in a sheltered area to protect it from extreme weather conditions, which can affect both mechanical and electrical components.
