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Serial 1 Mosh/Tribute

Serial 1 Mosh/Tribute
  • Color: Gloss Midnight Black
Gloss Midnight Black
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The First Limited-Edition S1 Series eBike is IN STOCK NOW in VERY LIMITED QUANTITY! We received 4 of only 325 coming into the USA

This bike is VERY limited (650 global, 325 coming into USA) and we have medium and large sizes available.

When Serial 1 launched in October 2020, the first eBike shown to the public was a stunning prototype drawn from the vintage motorcycle that inspired the creation of the Serial 1 eBike brand. Serial 1 is thrilled now to offer a limited-edition model, the MOSH/TRIBUTE, that so faithfully captures the iconic look and feel of that first prototype, and to use this moment as a springboard to launch our S1 Series that will see even more exclusive and highly-desirable Serial 1 eBike models in the future.

Based on Serial 1’s MOSH/CTY production model, the MOSH/TRIBUTE holds remarkably true to the original prototype, including rich gloss black paint with gold graphics, distinctive, white-toned Schwalbe Super Moto-X tires (exclusive to Serial 1), a hand-crafted, honey-colored leather saddle and matching leather grips from Brooks England, and a stamped-brass shield mounted to the front signature light.

Behind the special paint and components, the MOSH/TRIBUTE maintains all the features and functionality of the standard MOSH/CTY model, including the maintenance-free Gates Carbon Drive belt, powerful Brose mid-mount motor, smooth TRP hydraulic disc brakes, internally routed cables and wires, and integrated lighting.

The new S1 Series will roll out special, limited-edition versions of the company’s production eBikes that have been elevated with premium finishes, added technology, exclusive components, and unmatched attention to detail. Production of the MOSH/TRIBUTE, available for pre-order today, will be limited to just 650 units total. Delivery is anticipated for holiday 2021.

More about the new Serial1 bike line from Harley-Davidson.

The lightweight, mid-mounted Brose S 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.

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.

MOSH/TRIBUTE uses a single-speed freewheel hub for the most direct connection between the rider and the road.

The MOSH/TRIBUTE is equipped with an integrated, 529Wh lithium-ion battery that can be quickly removed from the frame without tools. The battery locks into the the frame for enhanced security

The integrated, removable, 529Wh lithium-ion battery delivers a real-world range of 35-105 miles, depending on ride-mode selection, terrain, and how much pedal input the rider supplies.

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: 0-75% = 2.6hrs; 75-100% charge = 2.1hrs.

Front and rear hydraulic disc brakes utilize two-piston calipers and 203 x 1.8mm 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, 2.8-inch Schwalbe Super Moto-X tires, in white rubber. The result is a perfect combination of low rolling resistance, ample shock absorption, and responsive, predictable handling.

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: gentle amount of assistance in flat-and-favorable conditions.
  • Tour Mode: optimal blend of assistance and battery economy under mixed riding conditions.
  • Sport Mode: pronounced assistance away from corners or over rolling hills.
  • Boost Mode: confronting a steep hill, a strong headwind, or any other condition requiring a sustained boost.

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. The desired riding posture for the city bikes is upright to maximize comfort and awareness of the rider’s surroundings. Both the frame geometry and contact points were evaluated, to make sure that our size range is well suited to nearly every customer.

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 sleek, integrated battery, the elevated chainstays, and the mass-centralized motor position all mark the beauty, craftsmanship and emotional connection inspired by Harley-Davidson.


Frame Hydroformed aluminum, welded construction, internal routing
Fork Aluminum
Rims 27.5 x 35mm alloy rims and Sapim stainless steel spokes
Tires Schwalbe Super Moto-X 27.5 x 2.8-inch, white rubber
Brakes Hydraulic two-piston disc brakes front and rear, 203mm x 1.8mm rotors
Accessories & Extras Front & Rear Lights,
Color(s) Gloss Midnight Black
Sizes M, L
Weight 48.3 lbs/21.9 kg (Size Large)
Motor Brose S Mag, mid-drive mounting
Battery System 529 Wh, integrated, removable
Transmission Single-speed, freewheel
Maximum Assistance S 20 mph (US)
Range 35-105 miles – depends on mode and terrain

* Subject to change without notice.


The Making of Serial 1: Design Story

Take a sneak peek inside the design process that created our premium eBicycles and learn how we worked to integrate authentic Harley-Davidson DNA to create an iconic look and feel that’s fun and thrilling for everyone.

The Making of Serial 1: Engineering Story

Meet the Vice President of Product Development, Ben Lund, and learn how he combined his extensive experience in both the motorcycle industry and the bicycle industry to lead the creation of the finest eBicycles available today.

The eBike Guru presents: “Just Enjoy the Ride”

Everyone knows the “roadie,” racing around the neighborhood in a Spandex skinsuit and shaved legs, shouting “on your left!” at anyone who crosses his path. No one likes a roadie. Let Serial 1’s eBike Guru show you how to resist the evil roadie ways and just enjoy the ride instead.

Part Numbers

Option MPN Store SKU
Gloss Midnight Black / Medium S21950001 BIEL0228001
Gloss Midnight Black / Large S21950002 BIEL0228002