Our 48V, 25Ah Lithium batteries have operational temperatures ranging from -4 to 140 °F, boasting a maximum capacity of 1200Wh.

The battery weighs around 14 pounds.

Yes, the battery is fully removable.

The battery has a weatherproof rating of IPX5.

Currently we are undergoing the process of getting UL certifications, and will update customers as soon as possible on the status of said certification.

The Birch Grolar has a total load capacity of 400 pounds.

The Grolar uses torque sensors.

We recommend tires to be maintained at around 30 psi for optimal performance.

The Birch Grolar supports all wheel, front wheel, rear wheel drive modes, as well as pedal assist mode.

Yes, on full throttle the Grolar is capable of operating at 20+ mph.

The seat post has a range of 650 mm to 805 mm in height.

Riders between 5”4 to 6”5 are all supported.

We accept credit/debit cards, PayPal, and Shop Pay

Yes, Shop Pay supports paying in installments.

When payment fails, it is likely that our system has detected the possibility of credit card fraud. Notifying your credit card company or bank ahead of time that you are in fact making a payment could be one way of solving the issue. Other options include switching to another card, trying another payment method such as PayPal, or reaching out to customer service.

Only one code can be applied at the same time. If products are already on sale, the code will add further discounts to the already discounted prices.

Currently, affiliate programs are still under development.

Currently, we only provide FREE shipping to the lower 48 states in the US. We cannot ship to New York City (rest of NY is unaffected), Hawaii, Puerto Rico, and Alaska. And we DO NOT ship to PO BOXES or APO.

Dimension: 85” x 13.5” x 52”; weight 154.32 lb

Our warehouse is dedicated to having products packaged and shipped within two days of receiving the order. For further information on arrival time, please refer to the carrier with the tracking number we will provide you in an email after purchase. 

95% pre-assembled — final setup takes as little as 15 minutes.

The bike itself and accessories will be shipped in two separate packages.

Yes. The charger, as well as the battery, will come with the bike.

Please refer to our website for details.

Birch Grolars are capable of running at 20 - 28 miles per hour.

No, but do confirm the regulations and laws of your state and city to make sure that the bike is being used legally.

No need.

Birch models can be categorized under two categories depending on the settings and restrictions you put on:

• Class 2: Throttle + pedal assist, max speed 20 mph.
• Class 3: Pedal assist only, max speed 28 mph.

In most states, no license, registration, or insurance is required for Class 1 or 2 eBikes. Class 3 eBikes may have additional rules; California, for example, requires Class 3 riders to be at least 16 years old, and wear helmets at all times.

Yes. Birch eBikes are street legal in most areas:

• Use bike lanes or the right-hand side of traffic lanes.
  
• If the lane is too narrow, you may take the full lane.
  
• Obey all traffic signals and road rules like a standard bicycle.

This varies by class and location:

• Class 1 & 2: Often allowed on multi-use paths and some sidewalks.
  
• Class 3: Generally not allowed on sidewalks or unpaved trails.

Always check local signage and regulations.

• Required for Class 3 riders in many states.
• Riders under 16 or 18 may also be required to wear helmets depending on the state.
• Birch recommends helmets for all riders, regardless of age or class.

• Paved roads and bike lanes: Permitted in most states for Class 1 and 2.
• State parks, BLM land, and US Forest Service roads: Access varies. Some areas treat eBikes like motor vehicles and may restrict access.

Backcountry trails: Check local rules—many singletrack or wilderness areas prohibit motorized access, including eBikes.

Federal law defines eBikes as ≤750W, but several states allow 1000W motors, including:

• Oregon
• Minnesota
• Kansas
• Alaska
• Tennessee

Other states may allow 1000W for off-road or OHV use but restrict them on public roads or bike paths.

No. eBike insurance is not required in most U.S. states for Class 1–3 eBikes. However:

• Some states require insurance if your bike exceeds legal speed/wattage limits.
• Riders often choose liability or theft insurance voluntarily.

Under federal law (15 U.S. Code § 2085), a bicycle is classified as an eBike if:

• It has pedals,
• Is powered by an electric motor ≤750W (1 horsepower),
• And has a top speed ≤20 mph under motor power alone.

States can override this with stricter or looser rules—some permit up to 1000W for off-road use.

This depends on the amount of battery consumed before charging. We recommend waiting at least 6 - 9 hours when charging a battery with under 20% charge.

No, our batteries are premium grade with protection mechanisms set in place that alleviates the need of doing so.

Birch Grolars can be cleaned like a regular bike, but be mindful of the electrical connections and potential damage they can be exposed to when in contact with water. It is also recommended to remove the battery before cleaning, while cleaning the battery separately.

You will receive an invoice upon request, and digital versions are also available.

• Feel free to reach out with any questions, concerns, or problems you may have. Our customer support team at Birch is fully ready to provide the aid you need. You can reach them via email at support@birchhunters.com, or call 949-989-4960.

Currently we are working on offline integration and branching out to retailers, in hopes of achieving offline support with partnered dealers and bike shops. For now, please primarily refer to customer support and check for your warranty's coverage. Please be aware that any expenses related to repairs for damages not covered by the warranty will not be eligible for reimbursement.

Either refer to the user manual with detailed instructions on assembly, or refer to the videos we have posted on YouTube at https://www.youtube.com/@BirchHunters

We currently have two user manuals; one comes with each purchase and can be found included in the packaging of the bike, the other manual, on display settings, is accessed through scanning the QR code printed on the first manual. 

Select “Reset to defaults” in the settings menu and do a factory reset to see if the issue has been resolved. Reach out to customer service if not.

Select “Toggle Unit” in the settings menu, and change “Metric” to “Imperial”.

In the "Advanced Setting” menu, under “Assist Levels”, you can configure the amount of pedal assistance you would like.

Connect the cables of the throttle. Locate the throttle cable with the orange plug, disconnect then reconnect it to restart the throttle. If it still does not work, the choke must be replaced. Please send us relevant videos and your order number to support@birchhunters.com, we will provide you with assistance. 

Plug the motor cable back in. Locate the motor cable near the hub motor, unplug then plug it in again to restart the motor. If the error code is still shown on the display, send an email to us with relevant videos, the motor serial number, your order number and motor connector, and we will help replace your motor.

Disconnect the brake lever cables one by one to check whether the fault is caused by the left or right brake lever. Try readjusting the bolts and see if that solves the problem. If you still see error code 25, provide us with relevant video and your order number at support@birchhunters.com, we will replace the brake levers for you.

You must disconnect all 7 plugs (2 brake levers, throttle, front light, rear light, sensor, motor cable). The display should then show error code 24. If code 30 is still displayed after disconnecting all plugs, there is a high probability that the problem is with the controller. If code 24 is shown on the display after disconnecting all plugs, connect the motor cable first. If 30 is displayed, the problem is with the motor. If there are no error codes after connecting the engine, connect the other connectors in sequence until code 30 is displayed. This means that code 30 is caused by that connection and this part must be replaced. You can then send us relevant videos and your order number at support@birchhunters.com.