About the CERO One
Who is the CERO One Electric Cargo Bike for?
The CERO One is for anyone who wants a compact bike that can do a little bit of everything. If you're looking commute by bike, drop off a child at preschool, go grocery shopping, run errands, deliver food, get exercise, or just have a good time, the CERO One is for you!
Does the CERO One come in different sizes?
The CERO One is designed to accommodate all genders of riders of many sizes via seat and stem adjustments. We recommend the bike for riders with a height between 5’2” and 6’4”.
How can I adjust the stem?
Can I transport my bike on vehicle hitch mounted bike racks?
Yes. Your bike can be mounted on different available carrier systems such as the Hollywood Racks Sport Rider SE. Make sure that the racks can sustain the weight of the CERO One and accommodate the large tires.
How much does the bike weigh?
The bike with the battery mounted weighs 58.2 lbs. For more information, download the complete specs here.
Does the bike have any lights?
Yes. The CERO One comes with a white front light and a red rear light powered by the e-bike battery. To turn the lights on and off, press the headlight button on the right side of the computer display.
Does the bike come with a lock?
Yes. An ABUS Frame Lock comes with every bike. This lock is attached to the bike frame and allows you to lock the rear wheel, preventing it from spinning. The bike’s battery is also locked, using the same key as the ABUS Frame Lock. We always recommend using an additional lock, like the ABUS Chain Lock or a u-lock, to secure the bike to a fixed object.
Do I need a driver license or insurance to operate your bike?
No. The CERO One is a Class 1 electric bike, which means that in most places it is legally considered the same as a regular bicycle, so neither a driver's license nor insurance are required. However, laws regarding pedal-assisted e-bikes vary from country to country and place to place. Please consult local regulations before riding your bike.
I have seen e-bikes that sell for as little as $500, why does the CERO One cost more?
The CERO One is built with with high-quality, durable components to help the bike last longer and be more reliable. Most inexpensive e-bikes use cheap electric motor systems, but we pride ourselves in using the Shimano STEPS system, so you can be sure of its dependability and durability. The CERO One also features a cutting-edge new drivetrain system using Gates Carbon Drive belt and Shimano Inter-5E internal hub gears which provide smooth and nearly silent shifting with little to no maintenance.
What is the ideal tire pressure?
The CERO One comes with Schwalbe Big Ben Plus tires, which should be inflated to 30 to 55 PSI (2.00 to 4.00 bar). The best and safest way to inflate a bicycle tire to the correct pressure is with a hand or foot bicycle pump which has a built-in pressure gauge.
Where can I get a copy of the Owner's Manual?
All CERO Manuals and component manuals for both versions of the bike can be found on the Manuals page.
Shimano e-Bike System
How far can I go on a single charge?
The battery range varies depending on several factors: cargo loads, rider weight, assist mode, terrain, etc. According to Shimano, you can expect to go 53 miles per charge on High mode, 74 miles per charge on Normal mode, and up to 105 miles per charge on Eco mode. For more information, see the Shimano E6100 overview here.
How long does the battery take to charge?
Charging time for our 504 Wh battery from 0%, it takes 4 hours for an 80% charge and 7.5 hours for a 100% charge.
How do I charge the battery?
The bike comes with the EC-6002 charger that you can connect to any 100 V - 240 V AC, 50 - 60 Hz outlet. You can either connect the charger directly to battery while mounted on the bike, or remove the battery and charge it on its own.
How long can I expect the battery to last?
Shimano STEPS utilizes a long-life battery to maintain sufficient output, even after 1000 full charging cycles. It has been designed with year-round conditions in mind to exhibit the performance necessary in both the heat and the cold. After 1000 cycles, performance will decline but the battery will still be usable.
Can I buy extra batteries?
If you ever need to buy an extra battery, please contact CERO directly.
What is a mid-drive motor?
A mid-drive motor powers the crank of the bike directly, giving you a smooth boost with each pedaling motion. The system features three sensors: speed, cadence, and torque, all working together to give you the most performance when you most need it. Additionally, the mid drive motor is located in the lowest point of the frame, ensuring a lower center of gravity and more balanced weight distribution for stable handling.
Can I accelerate using a manually operated throttle?
The CERO One is a Class 1 e-bike, which means that it does not have a manual throttle to accelerate. Class 1 e-bikes receive motor assist only when pedaled, and the motor assistance cuts off at 20 mph as required by law.
Do I need to pedal?
Yes! Our electric motor gives you a “pedal assist” that provides you with necessary push to ride faster and with less effort. Plus, since your legs are providing the propulsion, you have more control over the bike, which is especially important if you are carrying heavy loads. These type of bikes are sometimes referred to as “pedelecs” and the great news is that you’ll still get a nice workout as you pedal!
How fast does it go?
The Shimano E6100 motor will provide you pedaling assistance up to the legal limit of 20 mph. However, the bike can go faster than 20mph down hills or with significant pedaling effort.
Can I ride this electric bike in the rain?
Yes. Our bikes, battery, and electric system are designed to ride in the rain without any problems. But please do not submerge the bicycle in water or use high-pressure sprayers to clean the bike. Remember to ride safely whenever it is wet!
How much cargo can I carry on my CERO bike?
The CERO One is designed to carry up to 55 lbs / 25 kg in the rear plus up to 22 lbs / 10 kg in the front OR up to 55 lbs / 25 kg in the front plus up to 22 lbs / 10 kg in the rear. No more than 77 lbs of cargo should be loaded onto the bike at any time and no more than 55 lbs should be loaded on any single rack at one time.
What is the total weight capacity of the bike?
300 lbs. This includes the weight of the rider plus all accessories and cargo.
Can I load cargo in the front and rear racks without a basket or platform?
Our front rack is designed to work ONLY with an attached CERO Platform, Small Basket, or Big Basket. The bike is NOT designed to be ridden without a front platform or basket. Our rear rack, however, can carry cargo without any attached basket or platform.
Can I use any of your baskets on the rear and front racks?
Yes. The LODEN modular cargo system was designed to allow you to use either of the LODEN baskets or LODEN platform in the front or on the integrated LODEN rear rack, allowing you to customize the bike to your needs.
Can I use third-party basket on your racks?
Our custom baskets are designed to be used with our racks; our bike is not designed to accommodate third party baskets.
Can I put panniers on the rear rack?
Yes, we designed our rear rack to be compatible with many cargo-carrying accessories. The rear rack’s side tubes are 14 mm in diameter, so any panniers or other accessories will need to be compatible with that size.
Can I attach a trailer to the bike?
CERO bicycles are compatible with many bike trailers that can be mounted using the kickstand mounting holes on the chainstay. Follow all instructions and load limits provided by the trailer manufacturer. We have also tested out Thule’s Chariot axle-mounted trailer on our bike and it works well.
Can I transport another adult on the front or rear racks?
No. The CERO One cargo areas are designed to carry a wide variety of cargo loads, but not adults. The bike is only designed to carry one child (up to 48 lbs / 22 kg) on a Yepp Maxi child seat mounted on the rear rack.
Are your bikes compatible with child seats?
Yes. The CERO One's rear rack is designed to fit the Yepp Maxi child seat without the need for any adapter.
Purchasing Your CERO One
How can I order the CERO One?
You can order your bike directly here on our website or visit one of our Partner Dealers.
What forms of payment do you accept?
We accept payment through all major credit cards and PayPal.
My order keeps getting declined – what can I do?
Typically this is due to your credit card or bank card declining the transaction due to the high amount. Please contact your bank to authorize the purchase and try checking out again. Contact us if you are still having trouble and we'll be happy to help.
Do you offer financing?
Yes, you can finance your purchase through Klarna.
Where can I check my order status?
After placing an order through our website, you will be sent an order confirmation that includes a link to your order status page. You will also get updates when your order is shipped.
Does the CERO One come with a warranty?
Yes. You can find more details on our Warranty page.
Do you accept returns?
Yes. You can find more details on our Returns page.
Can I change or cancel my order?
If you made an order in error, contact us as soon as possible (ideally on the same day) to cancel the order before it ships. If your bike has already shipped, please follow procedures on our Returns page.
Can I buy accessories on your website?
Yes. We sell a variety of accessories, including our proprietary cargo platform and baskets and other cargo-carrying accessories from high-quality brands.
Do you sell outside of the United States?
Currently, we only sell bikes in the United States. We work with a distributor based in Germany for European sales, and we hope to add distributors in more countries soon. Stay tuned.
Shipping and Assembly
How much does shipping cost?
We currently offer free shipping across the continental United States.
Do you ship outside of the United States?
Currently, we only offer shipping in the continental United States. We cannot ship to other countries at this time.
Do you ship to Alaska and Hawaii?
We cannot ship to Hawaii or Alaska at this time, but stay tuned.
Is there any assembly required for the CERO One?
For free home delivery, the bike will arrive to you 95% assembled. It comes with a set of tools and detailed assembly instructions so that you can set up the bike yourself. You can also follow along with this assembly video. We also recommend contacting one of our Partner Dealers or a mobile service provider if you are unsure or uncomfortable assembling the bike on your own.
How do you package and ship your bikes?
We take great care to securely pack each bike with many layers of protective padding, and use top professional shipping services to ensure that your bike arrives safely.
What if my bike arrives damaged?
Please notify the shipper and contact us immediately. We'll make it right.
Where do you ship from?
We ship our bikes from a warehouse and fulfillment center in Los Angeles, California.
How do I service and maintain the CERO One?
Like any bicycle, the CERO One needs regular service and maintenance. Fortunately, any professional bike mechanic should be capable of handling most of your tuning and maintenance needs. You can also contact one of our Partner Dealers or a mobile service provider who will often have more experience working on CERO bikes and other electric bikes. The CERO team is also happy to assist you with technical support and we can direct you to a mechanic near you if you need help.
About CERO Bikes
What does the name CERO mean?
"CERO" means the number zero in Spanish. CERO is proud to build cargo bicycles that produce zero emissions and help people reduce their carbon footprint.
Where can I see or test ride the bikes?
You can check out the CERO One and arrange a test ride at any of our Partner Dealers. If you live or visit southern California, you can also sign up for a test ride appointment at our Los Angeles office.
Where are CERO bikes manufactured?
Our bike frames, racks, and baskets are manufactured by hand at one of the top bike manufacturers in Taiwan. Final assembly, quality control, tuning, testing, and certification are also completed by certified professionals in Taiwan. Taiwan is world-renowned in the bike industry for the quality of their work and our partners have been producing bicycles for top brands for many decades.
If you can’t find an answer to your questions here, please contact us.