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.
Our GO and AIR/MAX Kits currently come with just the front motor wheel option. If you are interested in pre-ordering the MAX+ or MAX++ Kit then we are offering the option to upgrade to a rear motor wheel if you prefer – subject to available wheel sizes in the Order Portal.
| Tyre Marking Examples | ||||
|---|---|---|---|---|
| Swytch Wheel | Wheel Size | ETRTO | French | English |
| 622 | 28″ / 700C/ 29er | 32-622, 38-622, 40-622 | 700x32C,700x35C,700x38C,700x40C | 29x22,28x1.75,28x1-5/8 |
| 584 | 27.5″ | 50-584 | 650x28B | 27.5x1.95 |
| 630 | 27″ | 28-630, 25-630, 32-630 | 650x37A, 650x32A | 27x1-1/8, 27x1 |
| 590 | 26″ | 37-590, 40-590, 32-590 | 650x37A, 650x32A | 26x1-3/8 |
| 559 | 26" | 47-559 | 26x1.75, 26x1-3/4 | |
| 507 | 24" | 50-507 | 24x2.00, 24x1-3/4 | |
| 457 | 22" | 37-457 | 22x2.40 | |
| 451 | 20" | 37-451 | 20x1-3/8 | |
| 406 | 20" | 40-406, 47-406 | 20-1.50, 20-x1-3/4 | |
| 355 | 18" | 47-355 | 18x1.75, 18x2 | |
| 349 | 16" | 37-349 | 16x1-3/8 | |
| Hub only | Any | Any | ||
Common sizes included for bikes:
Mountain
26", 28", 29", 30"
Hybrid
26", 28", 29", 30"
Road
26", 28", 29", 30"
Folding
16"
Single Speed
20", 24", 26", 28", 29", 30"
Step-over
26", 27", 27.5", 29"
BEHIND THE SCENES
Made 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.
Powerful 250W Motor
Enough power to push you up almost any hill, whilst still being road legal.
Disc Brake Compatible
Our motor wheels feature screw holes that allow you to easily attach your existing disc brake.
Folding Bike Compatible
We build the motor wheel to match your bike!
Black or Silver Options
Upgrade to our black motor option! (AIR/MAX/MAX+ Kits Only)
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.
Ways to check
Using tyre markings
Using a ruler
Checking online
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
French
English
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
French
English
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
French
English
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
French
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
French
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
French
English
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
French
English
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
French
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
French
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
French
English
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
French
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.
ETRTO
French
English
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.
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.
| Tyre Marking Examples | ||||
|---|---|---|---|---|
| Swytch Wheel | Wheel Size | ETRTO | French | English |
| 622 | 28″ / 700C/ 29er | 32-622, 38-622, 40-622 | 700x32C,700x35C,700x38C,700x40C | 29x22,28x1.75,28x1-5/8 |
| 584 | 27.5″ | 50-584 | 650x28B | 27.5x1.95 |
| 630 | 27″ | 28-630, 25-630, 32-630 | 650x37A, 650x32A | 27x1-1/8, 27x1 |
| 590 | 26″ | 37-590, 40-590, 32-590 | 650x37A, 650x32A | 26x1-3/8 |
| 559 | 26" | 47-559 | 26x1.75, 26x1-3/4 | |
| 507 | 24" | 50-507 | 24x2.00, 24x1-3/4 | |
| 457 | 22" | 37-457 | 22x2.40 | |
| 451 | 20" | 37-451 | 20x1-3/8 | |
| 406 | 20" | 40-406, 47-406 | 20-1.50, 20-x1-3/4 | |
| 355 | 18" | 47-355 | 18x1.75, 18x2 | |
| 349 | 16" | 37-349 | 16x1-3/8 | |
| Hub only | Any | Any | ||
Step 2
Find your axle size
You can identify what axle size you 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.
What options are there?
What do I need?
How do I measure?
What about quick release forks?
10mm
Most common / standard
9mm
Quick release forks
Frequently Asked Questions
Got a question?
Category
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.
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.
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.
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 Kit compatible with Thru-axles forks?
To expand compatibility with a wider range of bikes and better meet the needs of our customers, we have introduced a rear wheel that is available exclusively with the MAX+ range. This rear wheel is designed to be compatible with bikes that have thru-axles.
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.
