![[second hand]BG-S Electric Bike for Adults – 20"x4.5" Fat Tire, 1200W Motor, 48V 15Ah Battery, 7-Speed, Dual Disc Brakes for Off-Road and City Riding](http://www.bigniubike.com/cdn/shop/files/WhatsAppImage2025-07-18at6.18.07PM_1.jpg?v=1753080124&width=540)
![[second hand]BG-S Electric Bike for Adults – 20"x4.5" Fat Tire, 1200W Motor, 48V 15Ah Battery, 7-Speed, Dual Disc Brakes for Off-Road and City Riding](http://www.bigniubike.com/cdn/shop/files/WhatsAppImage2025-07-18at6.18.26PM.jpg?v=1753080123&width=540)
![[second hand]BG-S Electric Bike for Adults – 20"x4.5" Fat Tire, 1200W Motor, 48V 15Ah Battery, 7-Speed, Dual Disc Brakes for Off-Road and City Riding](http://www.bigniubike.com/cdn/shop/files/WhatsAppImage2025-07-18at6.23.20PM.jpg?v=1753080123&width=960)
![[second hand]BG-S Electric Bike for Adults – 20"x4.5" Fat Tire, 1200W Motor, 48V 15Ah Battery, 7-Speed, Dual Disc Brakes for Off-Road and City Riding](http://www.bigniubike.com/cdn/shop/files/WhatsAppImage2025-07-18at6.23.32PM.jpg?v=1753080124&width=960)
[second hand]BG-S Electric Bike for Adults – 20"x4.5" Fat Tire, 1200W Motor, 48V 15Ah Battery, 7-Speed, Dual Disc Brakes for Off-Road and City Riding
Black BGS is out of stock and is now open for pre-order, expected to be ready to ship on July 8th.
Pairs well with
[second hand]BG-S Electric Bike for Adults – 20"x4.5" Fat Tire, 1200W Motor, 48V 15Ah Battery, 7-Speed, Dual Disc Brakes for Off-Road and City Riding
Restocking Notice
Black BGS is expected to be on shelves and shipping from August 5 - August 10, now Black BGS is a pre-order.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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FAQ’s
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Your Adventure Partner: BG-S Electric Bike from BIGNIU
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BIGNIU BG-S Installation Tutorial Video
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FAQs
Please read our FAQs page to find out more.
How long does it take to recharge the BGS?
6-7 Hours
Does the BGS have cruise control?
The BGS has cruise control, which can be turned off by lightly squeezing the brake.
What is the approximate whole weight of the BGS?
37KG