All Helen e-bikes come 90% pre-assembled with a toolkit containing everything that needed plus an easy-to-follow user manual.

The recommended rider height is 4'9"-6'4"(1.6 m-2 m).( Customers choose the corresponding model according to their height)

All Helen e-bikes are IP65 rated. However, we recommend against riding in the rain for your safety.

Recommended places to ride the e-bike include designated ​bike lanes, trails, and other areas where bikes are permitted

You don’t have to. However, frequent charges will affect the battery life. We recommend charging the battery only when it is at a low battery level.

According to laws and regulations of different countries, both throttle assist and pedal assist are available for US-version e-bikes. But only pedal assist is available for European-version e-bikes.

Some handlebars support adjustment, some handlebars are fixed, if you need to improve, please consult the sales staff.

This Helen e-bike has a range of up to 60 miles if you fully charge the battery. However, the actual range depends on various factors such as terrain types, wind, and load. We recommend you follow riding instructions in the user manual to maximize your riding range.

Yes. You can take out the battery for charging or storage. Please refer to the user manual for operation details.

This battery has a lifespan of 3 years. However, its lifespan will be influenced by various factors such as charging operation, riding habits, and battery maintenance. It’s strongly recommended that you follow the user manual for battery operation and maintenance.

A full charge takes up to 7 hours. You can read the LED lights to check the battery level when the battery is being charged.

Fat tires enable this type of e-bikes to perform well in all terrain types, such as city roads, rugged roads, and beaches.

Yes. If the battery dies, you can still ride this e-bike as a normal bicycle.