Performance WIRED Viper 20-inch dual-motor step-through power performance bike in red

Official manufacturer product image

WIRED

Viper 20"

72V dual-motor step-through · Current generation

A compact-wheel, step-through dual-motor PPB with WIRED's highest published torque figure.

$3,699

Checked Sep 19, 2026

Check current price and availability

Availability snapshot: preorder. WIRED's current model collection labels the Viper as a preorder.

Original U.S. manufacturer-source record: Sep 19, 2026. Later field-specific checks and exact sources are listed below. Confirm current price, configuration, and availability with the seller.

Power Performance Bike (PPB)

Public-road status needs extra verification

WIRED says this model ships in a 20 mph Class 2 setting and can be configured for Class 1 or 3, but also says its unrestricted PPBs are prohibited on public roads in many states. ERideMatch does not treat it as confirmed for public-road use.

50+ mphmanufacturer unrestricted claim

Claimed range*Up to 90 miUp to about 90 miles in PAS 1, manufacturer claim
Motor3500WDual Hub · 430 Nm
Battery2520 WhUL 2271
Complete weight160 lb160 lb with both batteries; 122 lb without batteries

ERideMatch view

Where this bike makes sense

Strongest for

Extreme private-property hills
Compact-wheel handling
Riders who need a lower step-through frame

Think about

160 lb complete weight
Private-property-focused performance and access limits

Check it against my life

Fit and capacity

The numbers that determine whether the bike can safely support your use.

Published rider height: 4′ 10″–5′ 11″
Total payload: 450 lb
Published rider limit: Not clearly published
Frame choices: Step Through
Rear rack capacity: No included rack
Passenger rating: Not passenger-rated

Ride and performance

Manufacturer numbers translated into useful comparison points.

Motor position: Dual Hub
Nominal / peak power: 3500W / 8000W
Published torque: 430 Nm
Pedal sensor: Switchable
Classes / top assist speed: Class 1, Class 2, Class 3 · 28 mph
Unrestricted performance: 50+ mph manufacturer claim
Throttle: Yes
Suspension: 70 mm front · rear suspension (travel not published)
Tires: 20 × 4 in fat tire

Ownership and safety

Included equipment, maintenance, service, and published certifications.

Drivetrain: Shimano 7-speed chain
Dealer network: Primarily direct-to-consumer
Included equipment: Rack: not included · Fenders: not included · Lights: included
Electrical-system certification: Not verified from the current manufacturer page
Battery certification: Manufacturer reports: UL 2271
Published water rating: Not clearly published

Certification evidence on file

UL 2271battery · manufacturer claimed

Reported on the manufacturer source. ERideMatch has not stored an independent certification-directory listing number for this exact variant.

Open the supporting manufacturer source ↗

Viper 20"

Public-road status needs extra verification