Motor Controls and Operation

All bikes by Rad Power Bikes in North America are equipped with two ways for a rider to obtain power assistance from the motor: a twist-grip throttle and a pedal assist system. You can use either system to control the level of assistance provided by the electric motor!

The throttle is located on the right side of the handlebar and can be used to propel the bike forward without pedaling. 

The throttle is used by first ensuring the black button on the throttle assembly is depressed, then slowly and carefully rotating the throttle backwards towards the rider. If the throttle button is not depressed, the throttle is off. The black button on the throttle is a latching type switch, so once depressed, you do not need to hold it down. With the button depressed, the throttle can be used whenever the bike is turned on. Do not use the throttle unless you are on the bike.

Twist-Grip Throttle



Pedal assist (PAS) can be engaged for a more traditional bike riding feel, as pedaling will call up assistance from motor based on the level of assistance you've selected.

You can select the desired level of pedal assistance between level 0 through 5 using the up and down arrows on the LCD display remote located on the left side of the handlebar. Level 1 corresponds to the lowest level of pedal assistance, and level 5 corresponds to the highest level of pedal assistance. Level 0 indicates pedal assistance is inactive. Start in PAS level 0 or 1 and adjust from there. For more information, check out the Pedal Assist Features and Operation article.

Pedal Assist

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For questions about the power assistance features, contact Rad Power Bikes Customer Experience by email to or by phone to (800) 939-0310 x 1.


 Users must become accustomed to the bike’s power control system before operating. The throttle mechanism allows full power to be activated from a stop and inexperienced users should take extra care when first applying the throttle. The pedal assistance feature is also a powerful option and users should fully research and understand how to operate it before first use. Not taking care to familiarize yourself and practice the operation of the power system on your bike from Rad Power Bikes can lead to damage, serious injury, and/or death.