 
    Motor Wheel
How it works
Available for Any Sized Bike
The Swytch Kit can convert almost every bike, with 13 wheel sizes to pick from. If you don’t see your wheel size you can select our hub-only option and get a wheel built up at your nearest Swytch partner store.
MAX Kits come in all front wheel sizes. GO Kits are compatible with 26″ to 29″ wheels. MAX+, MAX++ have the option of rear wheels – 28″/700C/29er, 27.5″, and 26″ sizes are available, with options for both standard fitting and thru axle configurations in the order portal after you place your pre-order deposit.
 
            Common sizes included for bikes:
 
                        
                    BEHIND THE SCENES
Built in the UK!
We custom-build each motor wheel at our wheel building facility in Norwich, UK. This allows us to offer ANY wheel size, made to order to match your bike.
 
                        
                    Step 1
Find Your Wheel Size
Wheel sizes can be confusing. Whatever bike you have, our video explains how to quickly find the wheel size.
How to confirm that my bike has a...
28”
Measurement method 1 Size markings
If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 28” wheel: 622, 700c, 28, 29er.
 
                    ETRTO
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If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 27.5” wheel: 584, 27.5, 650.
 
                    ETRTO
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If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 27” wheel: 630, 27, 650.
 
                    ETRTO
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If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 26” wheel: 590, 26
Please note there are two 26″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    ETRTO
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English
If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 26” wheel: 599, 26
Please note there are two 26″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    ETRTO
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English
If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 24” wheel: 507, 24.
 
                    ETRTO
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If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 22” wheel: 457, 22.
 
                    ETRTO
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If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 20” wheel: 451, 20.
Please note there are two 20″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    ETRTO
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English
If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 20” wheel: 406, 20.
Please note there are two 20″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    ETRTO
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English
If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 18” wheel: 355, 18.
 
                    ETRTO
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If your bike tyre has any of the following numbers on it (anywhere on the tyre), then it’s a 16” wheel: 349, 16.
 
                    ETRTO
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Measurement method 2 Ruler
Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 711.2mm then it is a 28” wheel.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 698.5mm then it is a 27.5” wheel.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 685.8mm then it is a 27” wheel.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 660.4mm then it is a 26” wheel.
Please note there are two 26″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 660.4mm then it is a 26” wheel.
Please note there are two 26″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 660.4mm then it is a 24” wheel.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 558.8mm then it is a 22” wheel.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 508mm then it is a 20” wheel.
Please note there are two 20″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 508mm then it is a 20” wheel.
Please note there are two 20″ wheels, both with different ETRTO numbers, please check you have the correct ETRTO in this case.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 508mm then it is a 18” wheel.
 
                    Measure the diameter of the wheel from edge to edge of the metal rim. If the measurement is 508mm then it is a 16” wheel.
 
                     
                        
                    Step 2
Find Your Axle Size
You can identify what axle size you need by measuring the gap with a ruler. Note if you have a folding bike, the narrow motor wheels all come with an 8mm axle size.
Frequently Asked Questions
Got a Question?
Category
What rear wheel options are available?
28″/700C/29er, 27.5″, and 26″ sizes are available for MAX+ or MAX++ Kits Only, with options for both standard fitting and thru axle configurations.
What happened to the AIR Power Pack option?
As of April 2025, AIR Power Packs are no longer available on our website. However, they remain in stock at over 100 bike shop retailers across the country.
What’s the riding experience like with the rear wheel?
Riding with a rear-wheel motor feels more natural than with a front-wheel motor, as the rear motor pushes you forward, similar to pedaling, while a front motor pulls you along.
What tools do I need to fit the rear motor wheel?
To fit a rear wheel, you’ll need a few tools. If you’re installing a solid axle rear wheel motor, an adjustable spanner is required. For a thru-axle, you’ll only need the tool you typically use to remove the axle, depending on your bike. You’ll also need a set of Allen keys or Torx drivers to replace the disc rotor, along with a cassette tool and chain whip to remove and replace the cassette. All of which you can find in our tool kit, available on our order portal when you make a pre-order or in our online shop.
Is riding with a rear motor wheel more powerful?
Riding with a rear-wheel motor doesn’t offer more power compared to a front-wheel motor, as both are capped at 250W and 40Nm, which limits the overall power and speed.
How long does installation take?
Installation time depends on your Power Pack option and your personal skills, but it usually takes between 25 to 45 minutes. The GO is much simpler to install, thanks to its all-in-one battery design with velcro connections. If you’ve ever changed a tire, that’s the toughest and most time-consuming part—everything else is pretty straightforward. Our detailed manuals and installation videos also have excellent reviews from customers. And if you run into any issues, our dedicated customer support team is always ready to help!
What tools do I need to install the kit?
You’ll need to use the following tools to install your Kit: Bike Pump, Adjustable Spanner, Ruler, Scissors, Allen Key Set and Tyre Levers. Please note these are not included with your kit.
What motor wheel options are available for MAX+?
 28″/700C/29er, 27.5″, and 26″ sizes are available, with options for both standard fitting and thru axle configurations. Please note this is only available for MAX+ kits.
28″/700C/29er, 27.5″, and 26″ sizes are available, with options for both standard fitting and thru axle configurations. Please note this is only available for MAX+ kits.
Which tyres are not compatible?
The Swytch motor wheel is designed to accommodate tire widths ranging from 1.1 to 2.5 inches (28 to 64 mm) only, which excludes fat tyres and very narrow road tires. Please purchase a tyre that is compatible for the Swytch motor wheel.
How do I join the waitlist?
You can join our waitlist by pressing the yellow sign up button at the top of the page. By signing up, you’ll be the first to hear about our latest offers, new product launches, and much more!
Do you offer maintenance services of the Kit?
Swytch do not offer maintenance services; however, with the Swytch Kit, you receive lifetime support from our trained technicians, so you can be confident that assistance is always available if anything goes wrong. To ensure its longevity, we recommend following the guidelines provided in the manual. This includes charging the power pack as instructed, storing it in a cool, room-temperature environment, and avoiding direct sunlight. Visit one of our many partner stores who will be happy to help you with any issues or maintenance requirements.
Is there any drag from the motor wheel?
The Swytch Kit features an advanced brushless geared motor with virtually zero drag when the power is off. This means that if you remove the power pack or turn it off, the bike operates just like a regular, non-electric bike, providing a smooth and efficient ride with virtually zero added resistance.
Is it road legal?
Yes, the Swytch Kit is 100% road legal in most regions, as it complies with local laws and regulations for e-bikes.
How will I pick my wheel size?
We have detailed articles available to help you determine the correct wheel size for your bike on our help centre.
Can the Swytch Kit handle steep inclines or hilly terrain?
Our kit has been tested to handle hills with gradients of up to 32%, which is equivalent to the steepest roads in the UK and other countries. This ensures that Swytch can provide reliable performance, even on challenging terrains.
What is the motor power output of the Swytch Kit?
Our motor wheel has a rated power of 250W and a maximum torque of 40 Nm.
Is the Swytch Kit safe to store in a shed?
You can store the Swytch Kit on your bike in the shed, but we recommend taking the battery indoors and storing it at a moderate temperature to maintain its longevity.
Does using the Swytch Kit void any warranty on my bike?
The Swytch Kit does not require any modifications to your bike, ensuring that it will not void your bike’s warranty in any way.
What makes the Swytch Kit unique compared to other eBike conversion kits?
At Swytch, we’re changing the way people move. We believe that sustainable transport shouldn’t cost the Earth, so we’ve made it our mission to make electric transport accessible to everyone. The Swytch Kit is the world’s best-selling e-bike kit, designed to offer lightweight, easy installation, and powerful performance, all in one package!
What is included in the box when I purchase the Swytch Kit?
When you purchase the Swytch Kit, you receive everything you need to convert your bike to electric. This includes the wheel, power pack, pedal sensor (PAS – Pedal Assist System), charger and all necessary cables.
Are replacement parts available, and how easy is it to get them?
You can easily purchase replacement parts and accessories through our online store here.
What happens if I run out of battery during a ride?
If you run out of battery during your ride, there’s no need to worry. The system will automatically turn off, and you can continue using the bike as a regular bike. Alternatively, you can carry a spare battery in your backpack to extend your range and swap the batteries when needed.
Does the Swytch Kit include a display or screen for speed and battery tracking?
The Swytch Kit does not come with the display included, but you can add it as an optional accessory through the order portal. The display allows you to select from 5 power levels while cycling and is easily installed on your handlebars.
Can I use the Swytch Kit off-road or on trails?
Yes, the Swytch Kit can be used off-road and on trails.
Can I use the Swytch Kit on a bike with disc brakes?
The Swytch Kit is 100% compatible with disc brakes, including both hydraulic and cable systems. All standard Swytch motors feature 6 screws on the outer part, allowing you to securely fit your existing disc brake to the motor.
What are the key differences between the various Swytch Kit models?
The key differences between the kits are the power pack capacities and placement of them, allowing you to choose the ideal range for your needs. Additionally, we offer two types of wheels: a standard front wheel and a rear wheel, providing flexibility based on your bike’s requirements.
Does the Swytch Kit require any software or app to function?
The Swytch Kit does not require any software or app to be downloaded. You operate the entire kit using the display, if selected. If you don’t have a display, simply turn on the Power Pack and start pedaling—it’s that easy!
What maintenance does the Swytch Kit require over time?
To ensure its longevity, we recommend following the maintenance guidelines provided in the manual.
Does the Swytch Kit include a throttle option?
Yes, we offer two optional throttle accessories: a Thumb Throttle and a Twist Throttle. Both are compatible with all versions of the Swytch Kit and can be easily added or removed to suit your preference.
Throttle functionality depends on your delivery region and local regulations. For example, in the UK, the throttle operates up to 5mph on its own, then functions as a boost button – meaning you still need to pedal, but activating the throttle delivers maximum power assistance, similar to how a VanMoof bike’s boost button works.
How does the pedal assist system work, and how many levels are there?
The sensors in the Swytch Kit operate using magnets. The magnets on the PAS (Pedal Assist Sensor) ring enable the kit to detect your pedaling cadence. By “cadence,” we mean that the system delivers power when you pedal and stops when you stop pedaling.
The power level can be manually selected on the display, offering five different levels of assistance to suit your needs. If you opt not to include the display when placing your order, the kit comes with a small dongle adapter instead. This adapter allows you to use the kit without the display, with the power level automatically set to assistance level 3.
Can the Swytch Kit be easily removed or switched to another bike?
Yes! You can easily transfer and install the Swytch Kit onto another bike, provided the wheel size is the same. If the new bike requires a different wheel type, please contact our customer service team, and they will be happy to assist you
How does the Swytch Kit impact the handling of my bike?
The Swytch Kit does not negatively impact the handling of the bike. In fact, it helps by providing additional assistance through the front wheel, which pulls you forward as you pedal.
Is the kit waterproof or weather-resistant?
Our Kits are designed to withstand various weather conditions and are rated IP6, meaning it can be used in heavy rain without any issues. However, if the exterior of the power pack sustains cracks or damage, or if the kit is submerged in water for an extended period, it may compromise the waterproofing.
If you encounter any damage to the kit, please reach out to our team with a photo of the damage and an explanation of what occurred, and we’ll assist you accordingly.
What is the warranty period for the Swytch Kit?
We offer a 1-year warranty on all kits, starting from the date of delivery. To activate the warranty, you will need to submit photos or videos of your installed kit for review by our team. Once your kit is onboarded, you gain access to lifetime technical support, which includes personalized 1-to-1 video support calls with our trained technicians to ensure a seamless experience.
How much does the Swytch Kit weigh, including the battery?
Our kits have a combined weight of approximately 3.5 – 4 kg, depending on the capacity of the selected power pack.
How far can I travel using the Swytch Kit on a full charge?
The range you can achieve on a fully charged Swytch power pack depends on the specific battery you select. Our power packs offer options ranging from 15-20 miles for the smaller capacity models, up to 45-60 miles for the larger capacity models, ensuring flexibility to suit your needs and preferences.
What is the top speed achievable with the Swytch Kit?
The maximum speed of all our Swytch Kits is 32 km/h (20 mph). However, the kits are pre-configured according to the regulations of the delivery region. For customers in the United Kingdom and Europe, the Swytch Kits are set to a maximum speed of 24 km/h (15 mph) to comply with local laws and regulations.
 
         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                                         
                                         
                                         
                                         
                                         
                                         
                                         
                         
                         
                        