Since everyone’s proportions are different, we can’t recommend an exact minimum height but we generally say it’s around 5’4”. We can say more precisely that the minimum recommended inseam length for a rider is 30”. We have tested riders up to 6’3” on Eeyo 1. Please see What seatpost length should I choose below to find the correct size based on your inseam.

That depends on your inseam length. Because people’s proportions are different, we recommend choosing a seat post according to your inseam instead of your height. To accurately measure your true inseam (which is different than your pants inseam) without special tools, please consult this video. Although we can make some rough generalizations about which seatpost you should choose by your height, it’s not as accurate.

SEATPOST LENGTH (MM)	160	190	220	250	280
Inseam range (inches)	30	30 - 31	31 - 32	32 - 33	33 - 34
Inseam range (cm)	76 - 77	77 - 80	80 - 83	83 - 86	86 - 89

In order to create space inside the frame for you to comfortably carry Eeyo, the seatpost can’t extend below the frame, like it does on most bikes (where it’s usually inside another tube). So to accommodate the widest possible range of heights, we offer several seat post lengths.

The maximum recommended weight for a rider is 215 pounds (98 kg).

Absolutely. If you’re into bikes, we know you’re going to want to customize your Eeyo. From the pedals to the stem, everything on Eeyo 1 is compatible with standard components.

Eeyo 1 will provide electric assist up to 19 MPH in the US. Eeyo 1 allows riders to pedal faster than that, but cannot provide any power to the motor at 20 MPH or more to comply with regulations (Class 1 ebike).

We know you bought an Eeyo to have fun, which is why the Eeyo Smartwheel defaults to Sport mode. You have access to all the power and speed Eeyo is capable of - in proportion to your effort. The harder you pedal, the more Eeyo assists you. The same is true for Eco Mode, but your Smartwheel will not provide as much power or speed, in order to use less battery.

The Eeyo app is available in both the Apple App Store and Google Play Store. The iOS app requires OS 11 or higher. The Android App requires OS 6 or higher, we recommend using a phone with at least 1080p resolution.

Based on information security and anti-theft considerations, the Eeyo can only allow one account connection pairing of one device at the same time. If the previous user does not unpair, the next user will not be able to complete the pairing process. In other words, if Eeyo needs to be used by a second person, the previous user must be unpaired before handing over to the second person to continue the pairing process.

The Eeyo app is required to unlock the Smartwheel, lock the wheel manually and to change assist modes. Once unlocked, the app is not required to operate the wheel until the Smartwheel is locked again, which can occur without phone use either because auto-lock is turned on or because the Smartwheel has been charging.

All the tools you need to do this are included in the box. Eeyo 1 is simple to assemble. You only need to turn and tighten the handlebars (stem), install the front wheel, and screw in the pedals.

Eeyo is shipped almost fully assembled and adjusted. In addition to the bike, the box includes all the tools you need to finish assembly, the Portable Charger, and a reflector kit. Eeyo 1s also comes with a mini tire pump.

Once your bike has shipped to you, we offer a 14 day hassle-free return policy on all non-final sale goods. We stand behind our products 100% and if you aren’t entirely satisfied, send them back. Please return Eeyo in the original packaging, You are responsible for shipping/assembly fees only. Bicycles marked as final sale carry a full warranty, however, are not eligible for return. See our full return policy.

Eeyo’s frame and fork have a 5 year warranty. Drivetrain items including Eeyo Smartwheel 3 year warranty. All other components including charger, are covered by a 2 year warranty. The battery is covered for at least 80% of maximum capacity for 3 years or up to 500 full charge cycles, whichever comes first. See our full warranty.

Yes. Any time before you receive a shipping confirmation, you can contact us for a full refund.

We can ship to addresses in the contiguous 48 States for $99. Shipping to Alaska and Hawaii is $249. We are sorry but we can't currently ship to Puerto Rico or outside the US.

Orders are shipped out the following business day. Eeyo is shipped from our warehouse in Pennsylvania. Shipping usually takes less than a week. If a model is backordered, we will provide an expected shipping date for your order.

Please ask the previous owner for relevant proof documents, such as: purchase proof, delivery confirmation form, and confirm the legality of the source. Since Eeyo must be bound to an account and set various parameters through the Eeyo App, you can download the Eeyo App from the Apple App Store or Google Play Store and register an account for use. At the same time, please open the Eeyo App to perform unpair before selling the Eeyo, so as to prevent the Eeyo from being bound by the old account of the former owner, and the new account will not be able to perform pairing.