e*thirteens e*spec line of components are specifically designed and tested for Class 1 ebikes. Any use on Class 2, Class 3, or beyond category class ebikes is not approved and will void the warranty of the product being used. 

• Type: Pedal-assist only.
• Assistance Speed: Motor assistance cuts off once the bike reaches 20 mph.
• Throttle: No throttle is present. 

• Type: Features both pedal-assist and a throttle.
• Assistance Speed: The motor provides assistance up to 20 mph, whether by pedaling or using the throttle.
• Throttle: A throttle allows for electric propulsion without pedaling. 

• Type: Pedal-assist only.
• Assistance Speed: Motor assistance cuts off at 28 mph.
• Throttle: No throttle is present.
• Speedometer: A speedometer is required.