Powered by Harley-Davidson, the Serial 1 RUSH/CTY STEP-THRU is an all-access ride to wherever you want to go. This premium eBicycle is loaded with features and exceptional style. The step-thru frame makes it easy to get in the saddle without swinging a leg high over the seat; it also makes it easy to stand flat-footed over the bike at a stop – an essential urban-commute feature for some riders.
The lightweight, mid-mounted Brose S MAG motor features a brushless internal rotor and produces plenty of power assistance to provide a quick launch from a standing start and to give the rider the ability to conquer challenging hills. 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.
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 to maintain the rider's optimal, personalized pedaling cadence as terrain or speed changes.
The RUSH/CTY STEP-THRU is equipped with an integrated, 529Wh lithium-ion battery that can be quickly removed from the frame without tools. The battery locks into the frame for enhanced security. This battery delivers a real-world range of 35-90 miles, depending on ride-mode selection, terrain, and how much pedal input the rider supplies. It can be charged on the bike through a charging port conveniently located on the frame down tube, or easily removed for off-the-bike charging.
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 consist of 27.5 x 35mm alloy rims laced with stainless-steel spokes and fit with high-volume, 2.4" Schwalbe Super Moto-X tires. The result is a perfect combination of low rolling resistance, ample shock absorption, and responsive, predictable handling. 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.
A bright LED headlamp mounted on the handlebar stem illuminates the path ahead and can make the rider more conspicuous after dark. Bright combination LED tail and brake lights integrated into the frame dropouts are designed to make the bike more visible from the rear. A distinctive LED front signature light illuminates whenever the eBicycle is powered up.
Eco Mode – A gentle amount of assistance in flat-and-favorable conditions.
Tour Mode – The optimal blend of assistance and battery economy under mixed riding conditions.
Sport Mode – Pronounced assistance away from corners or over rolling hills.
Boost Mode – For confronting a steep hill, a strong headwind, or any other condition requiring a sustained boost.
FIT & FINISH
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. 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. Contemporary design touches like the integrated battery, the elevated chainstays, and the mass-centralized motor position all mark the beauty, craftsmanship and emotional connection inspired by Harley-Davidson.
Small: Up to 5'4" rider height / up to 29" rider inseam
Medium: 5'4"-5'8" rider height / 29"-31" rider inseam
Large: 5'8"-6'0" rider height / 31"-32" rider inseam
Motor: Brose S Mag, mid-drive mounting
Power: 250W (continuous rated power)
Torque: 90Nm/66 ft. lbs.
Max Assistance Speed: 20 mph
Range: 35-90 miles (depending on mode and terrain)
Charge Time: 0-75% charge = 2.6 hrs., 0-100% charge = 4.75 hrs.
Transmission: Enviolo AUTOMATiQ Intelligent Auto-Shifting CVT Hub
Final Drive: Gates Carbon Drive Belt
Frame: Hydroformed Aluminum
Wheels: 27.5 x 35mm Alloy Rims and Sapim Stainless Steel Spokes
Tires: Schwalbe Super Moto-X 27.5 x 2.4"
Brakes: Hydraulic Four-Piston Disc Brakes Front and Rear, 203mm x 2.3mm Rotors
Front Light: LED Headlight
Rear Light: Integrated LED Taillights with Brake Light
Weight: 59.5 lbs. (size medium)
Weight Limit: 280 lbs. (combined weight of bicycle, rider, and cargo)
- Step-thru frame makes it easy to get in the saddle and stand flat-footed at a stop
- Lightweight Brose S MAG motor with up to 20 mph assist
- 529Wh lithium-ion battery delivers up to 90 miles depending on mode and terrain
- Maintenance-free automatic transmission for optimal cadence as terrain changes
- Locking storage box, daytime running light, front and rear lighting, racks, and fenders