Serial 1 - RUSH/CTY SPEED eBike, Charcoal w/ up to 115mi Max Operating Range & 28mph Max Speed - Black
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Description

Electric transportation.
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Electric Transportation Buying Guide.
Learn what’s important when finding an electric ride that works for you.
See our buying guideFeatures
Motor
The lightweight, mid-mounted Brose TF MAG motor features a brushless internal rotor and produces 90Nm/66 ft. lb. torque, plenty of power assistance to provide a quick launch from a standing start and to give the rider the ability to conquer challenging hills.
Belt
The Gates carbon-fiber belt drive is smooth, quiet, and maintenance-free; it requires none of the frequent lubrication or adjustment of a traditional chain-drive system.
Hub
The fully enclosed, maintenance-free Enviolo AUTOMATiQ intelligent automatic transmission is an electronically controlled CVT (Constantly Variable Transmission) rear hub that automatically adjusts the gear ratio.
Battery
The RUSH/CTY SPEED is equipped with an integrated, 706Wh lithium-ion battery that can be quickly removed from the frame without tools. The battery locks into the the frame for enhanced security.
Range
The integrated, removable, 706Wh lithium-ion battery delivers a real-world range of 25-115 miles, depending on ride-mode selection, terrain, and how much pedal input the rider supplies.
Charging
The lithium-ion battery can be charged on-the-bike through a charging port conveniently located on the frame downtube, or easily removed for off-the-bike charging. Charge times are as follows: 0-100% = 6.5hrs; 0-75% = 3.5hrs.
Braking
Front and rear hydraulic disc brakes utilize four-piston calipers and 203 x 2.3mm heavy-duty brake rotors designed to deliver confident braking performance in most riding conditions. This is essential for faster-moving eBicycles and all-weather commuting.
Wheels and Tires
Wheels consist of 27.5 x 35mm alloy rims laced with stainless-steel spokes and fit with high-volume, 2.4-inch Schwalbe Super Moto-X tires. The result is a perfect combination of low rolling resistance, ample shock absorption, and responsive, predictable handling.
Fenders and Racks
Front and rear fenders protect the rider from wheel spray when riding in wet or dirty conditions. Front and rear cargo racks increase utility and practicality, providing a convenient way to carry small loads.
Lighting
LED headlamp on the handlebar stem illuminates the path ahead. Bright combination LED tail and brake lights integrated into the frame make the bike more visible from the rear.
Ride Modes
Eco Mode for a gentle amount of assistance in flat-and-favorable conditions. Tour Mode for the optimal blend of assistance. Sport Mode for pronounced assistance for hills, Boost Mode for steep hills, strong winds or other conditions requiring a boost
Glove Box
A compartment in the RUSH / CTY down tube provides a convenient place to store a lock or other small items that you may want to take with you for the ride. The glove compartment was specially developed for the premium security locks of the ABUS BORDO family.
Sizing
Frame geometry is optimized for each frame size to maintain a comfortable riding position and consistent handling across all rider sizes, regardless of rider height. Size is based on inseam and height.
Integration
Brake lines and electrical wiring are routed through the frame, promoting longer life and less maintenance through protection from the elements and clean, snag-free styling.
Styling
Contemporary design touches like the sleek, integrated battery, the elevated chainstays, and the mass-centralized motor position all mark the beauty, craftsmanship and emotional connection inspired by Harley-Davidson.
What Size Bike is for Me?
SMALL = 4'11" - 5'7", MEDIUM = 5'3" - 5'10", LARGE = 5'7" - 6'1", XLARGE = 5'9 - 6'5"+. Note the overlap on all sizes. Riders will easily fit on more than one size for all models.
Sizing Recommendations
We recommend the smaller size if you want the ebike to feel more responsive and playful & larger size if you want the ebike to feel more steady and stable for straight line cruising or carrying cargo.
What's Included
- Electric Bicycle
- Charger and Charging Dongle
- Keys
- Multi-Tool & Torque Wrench
- Fenders and Racks
Manuals & Guides
- Measurement Guide
- Size Chart
Key Specs
- Product Weight59 pounds
- Battery Charge Time6.5 hours
- Battery Amperage17 ampere hours
- Battery Voltage36 volts
- Maximum Operating Range115 miles
- Maximum Speed28 miles per hour
- ThrottleNo
- App CompatibleYes
- Passenger ReadyNo
- Electric Bike ClassificationClass 3
- Bicycle TypeAdults bike
- ColorBlack
General
- Product NameRUSH/CTY SPEED eBike, Charcoal w/ up to 115mi Max Operating Range & 28mph Max Speed
- BrandSerial 1
- Electric Bike ClassificationClass 3
- Bicycle TypeAdults bike
- Bike StyleElectric bikes
- Assembly RequiredYes
- Model Number15400574
- ColorBlack
- Color CategoryGray
Dimension
- Product Width27.2 inches
- Product Height43.2 inches
- Product Length75.2 inches
- Product Weight59 pounds
Additional Dimension
- Maximum Weight Capacity280 pounds
- Bicycle SizeLarge
- Wheel Diameter27.5 inches
- Wheel Thickness2.4 inches
Power
- Batteries IncludedYes
- Battery ChemistryLithium-ion
- Removable BatteryYes
- Battery Capacity706 watt hours
- Battery Charge Time6.5 hours
- Battery Amperage17 ampere hours
- Battery Voltage36 volts
- Battery Indicator LightYes
- Maximum Operating Range115 miles
- Rear-Rack Mounted BatteryNo
- Motor TypeBrose TF Mag Mid-Drive Brushless
- Maximum Speed28 miles per hour
- ThrottleNo
- On/Off SwitchYes
Connectivity
- App CompatibleYes
Display
- Display TypeLCD
- Information DisplayedBattery life, Distance, Odometer, Speed, Time
- Screen Length2 inches
- Screen Width2 inches
Features
- Integrated Light(s)Yes
- Padded SeatYes
- Adjustable Seat(s)Yes
- Adjustable Handlebar(s)No
- KickstandYes
- Front RackYes
- Rear RackYes
Design
- Passenger ReadyNo
- Bicycle Frame DesignStep-over
- Foldable DesignNo
- Gear Shifting MethodOther
- DerailleurNo
- Brake StyleDisc
- Rear BrakesYes
- Chain GuardYes
- Handlebar StyleFlat
- Frame Material(s)Aluminum
- FendersYes
- Alloy RimsYes
Warranty
- Manufacturer's Warranty - Parts2
- Manufacturer's Warranty - Labor2
Other
- UPC810093260232
Customer reviews
Rating 5 out of 5 stars with 6 reviews
(6 customer reviews)to a friend
Rated 5 out of 5 stars
Worth the Money, with a few Words of Caution
||Posted . Owned for 1 month when reviewed.It will reach top speeds of 28 mph on slightly declining level ground with moderate effort. With an aggressive start in Sport mode it will hit 20 to 23 mph within 3 to 5 seconds. In other words, it is fast. The bike’s scale is about twenty percent greater than a standard bike in terms of height and length. It has road presence, but discreet styling that does not draw attention. It is small enough to be transported on subways and trains. When handled by the rear down tube and right above the fork stem, the bike’s 60lb girth is easier to carry. The front and rear racks are excellent at taking blows to preserve the rigid frame’s finish. The lower center of gravity of the e-motor provides great stability, but the bike does not feel sporty. If Sportiness is what you’re after, l highly suggest looking at the Serial One’s Switch/Mountain. It has front shocks to reduce road impact harshness, and an actual gear selector allowing the rider to change gears on a whim. The Rush/City is fast, practical, and well built, but potholes are sometimes felt with surprising harshness through the handle bars or seat. The absence of a front fork suspension and the short rear down tube mean that some road irregularities resonate from the frame to the rider’s arms and torso. The benefit of this is the upright riding position keeps your line of sight on traffic and the harsh road impacts force the rider to grow intimately aware of the riding surface. The Rush City has a rear Enviolo CVT hub, but as a word of caution, it takes time dialing it in to your preferred settings for RPM and cadence. There ‘s also a slight delay before easily noticing detectable amounts of electric assist on the first few pedal rotations. This wait often occurs at the very beginning of a ride and somewhat subsides once it’s ridden for a minute or two. The hesitation can be reduced by making an aggressive start when pedaling in ECO and Touring mode. It is a almost a non issue when in Sport mode where the e-assist is rated at 75%. Enviolo offers an optional gear controller for the CVT transmission which can be added to the Rush/City. I recommend using it to see if it allows for more aggressive riding styles rather than trying to overpower the CVT transmission by increasing the amount of force exerted on the pedals. This transmission cannot be overpowered, either wait a few seconds for it to adjust to your ridding style or resort to changing the cadence/rpm setting and rider mode. The battery lasts for 35 miles riding aggressively in Sport mode while switching to Touring mode when possible. This is at an average speed of 15 mph. If you utilize the rocker switch aggressively for changing rider modes from ECO to TOURING and SPORT, the riding range increases significantly. This is a very nice looking e-bike with some discreet touches of refinement. While it is easy to use, a lack of riding instructions might create a steeper learning curve for accessing its maximum capabilities. The bike is best used as a moped that can be adeptly ridden by switching to street and sidewalk surfaces during a commute. A few upgrades, such as a suspension seat, front fork suspension and an extra battery, can help the Rush/City become a more comfortable short distance commuter or a long distance cruiser.
I would recommend this to a friendRated 5 out of 5 stars
Serialby Harley Davidson
||Posted . Owned for 1 month when reviewed.Great Bike. Seat could be more comfortable and handle bars are not adjustable, are the 2 things i would change
I would recommend this to a friendRated 5 out of 5 stars
Great Bike
Posted .I paid nearly twice as much for this last year. I'm completely satisfied with the bike. It flies down the road with very little effort even in it's lowest assist mode. I ride it a lot with no assist. The continuosly variable transmission (CVT) is a delight. No matter what the conditions, encline or stiff head wind, the CVT handles it and I just pedal at a steady cadence. I haven't taken it on a really long ride yet, but 15 miles barely put's a dent in the battery. The racks and fenders are heavy duty and perfect for riding around town and carrying small loads. Having the all the lights and wiring inside the tubing is a good feature from a maintenance point of view as well as aesthetics. I've never ridden on fat tires before, it's a very comfortable ride, and the hydraulic brakes are needed.
I would recommend this to a friendRated 5 out of 5 stars
Premium e-bike
Posted .This is a nce bike although not cheap. You pay a bit more for the HD brand but you also get a lot of really nice quality of life features like the aynthetic chain that makes ridng whisper quiet and tve low center if gravity with the battwry placement. If you have the extra funds, this is a solid bike.
I would recommend this to a friendRated 5 out of 5 stars
Perfect SoCal bike
Posted .Received a great deal on this bike($2,800)! Pros: very fast and stable, great brakes. Cons: All I hear is wind from going too fast!
I would recommend this to a friendRated 5 out of 5 stars
Amazing ebike everyone needs one of these.
Posted .Really good bike, well built and feel stable even at high speeds. It has amazing range. Would highly recommend. It makes riding a bike fun again. Only complaint is the seat is not too comfortable but also isn't the worst.
I would recommend this to a friend
Q: QuestionCan you limit the "Speed" model to 20mph in software? Like the larger battery vs the standard model, but would like to keep it limited to 20mph to comply with local trail/path restrictions.
Asked by VooDoo.
- A:Answer I haven’t heard of being able to limit the speed of the bike. I have heard on a Serial One blog that it is possible to change the electric assist settings for the different rider modes. Out of the box, the standards settings for e-assist are: 5% for ECO, 15% for TOURING, 50% for SPORT, and 100% for BOOST.
Answered by AvidCommuter
Q: QuestionWhat is the model year of this Rush/City Speed eBike?
Asked by berto.
- A:Answer Manufacturing began in 2021 and has continued into the current 2022 model year.
Answered by AvidCommuter
Q: QuestionYour sellong a $5,000.00 bike and no one knows the wattage on the motor?
Asked by Anonymous.
- A:Answer 705 watts
Answered by hembreed
Q: QuestionWhat is the watt rating of the motor?
Asked by Anonymous.
- A:Answer The Brose Drive TF Mag motor is rated at 250 watts.
Answered by AvidCommuter