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Greenify your commute
Prioritizing comfort, convenience, and ease of use, the SDREAM Ur is designed to excel in urban environments.
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Fast is fun
With a powerful brushless DC motor, the Ur is capable of reaching fast speeds on electric power alone
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Lightweight magnesium frame
A rust-resistant magnesium alloy frame helps the Ur weigh in at well under 50 lb with battery installed
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Downsize in seconds
Advanced folding mechanism with built-in magnets takes just seconds to collapse the bike down to a third of its size
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Last-mile mogul
Folding pedals create a slimmer profile while a caster wheel lets you more easily bring the folded bike with you indoors or on public transport
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Designed to fit your lifestyle
Li-ion battery is integrated in the seat post can be removed for charging at home and theft deterrence, or charged right on the bike
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More time riding, less time charging
With a 4 hour charge charge time providing up to 38 miles of range means the Ur fits your schedule, not the other way around
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Smart LCD display
Water- and dust-proof display provides battery info, electric assist level, speed, and trip metrics at a glance
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Enjoy the ride
Patented center hub vibration damping suspension allows the UR to neutralize 95% of vibration, even on rough terrain
Ur 500X Compact urban cruiser |
X 750S Fat tire all-terrain beast |
|
Model Number | BU50A2 | BX75A4 |
Color | Mint Green, Lead Gray, Crimson Red | Charcoal Gray, Light Olive |
Frame Material | Magnesium Alloy | Aluminum alloy |
Motor Type | 500W rear hub motor | 750W rear hub motor |
Motor Control | Thumb Throttle | Twist Grip Throttle |
Riding Modes | 5-level electric assist | 5-level electric assist |
Maximum Electric Assist Range | Up to 38 mi (60 km), depending on pedal input | Up to 50 mi (80 km), depending on pedal input |
Pedal Sensor | Torque Sensor | Speed Sensor |
Handlebar Display | LCD Display | 3.5” LCD Display, with USB charging port |
Battery | 36V / 7.8Ah 280Wh lithium-ion battery | 48V / 15Ah 720Wh lithium-ion battery with Samsung cells |
Charging time | 4 hours (2.5 hours with optional fast charger) | 5 hours (3.5 hours with optional fast charger) |
Shifter | Shimano 7-speed | Shimano 7-speed |
Brakes | Hydraulic disk, front and rear | Mechanical disk brakes |
Wheels | 20″ spoke wheels | 20″ aluminum alloy wheels |
Tires | 20" x 2.125” tires | 20" x 4” fat tires |
Suspension | Rear suspension | Front and rear suspension |
Folding Method | Frame folding | Frame folding |
Folded size (Length x Width x Height) |
27.6" x 15.0" x 30.3" (90 cm x 38 cm x 77 cm) |
40.9” x 20.9” x 28.7” (104 cm x 53 cm x 73 cm) |
Weight | 46.5 lb (21.1 kg), including battery | 76.7 lb (34.8 kg), including battery |
Body length | 58.6 in (149 cm) | 68.9 in (175 cm) |
Maximum rider weight | 220 lb (100 kg) | 265 lb (120 kg) |
![](http://sdream.us/cdn/shop/files/SDREAM_Ur_scene_{width}x.jpg?v=1614322066)
![](http://sdream.us/cdn/shop/files/AU0I8002_{width}x.jpg?v=1656667566)
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