The kit comes in all industry-standard wheel sizes, from 16" all the way to 28"/700C/29er.
Ask the bike seller
If you purchased online: Check the bike details on the retailer's website, there will be a "specifications" section which should list the specific ETRTO wheel size.
If you purchased in-store: The ETRTO wheel size is often in the specifications manual that came with the bike, alternatively, the retailer will be able to advise.
Check tyre markings
Most bikes have the ETRTO wheel size marked on the side of the tyre.
The images below summarise where to find the ETRTO, French version and English version tyre markings. Swytch Wheel sizes match the last three digits of the ETRTO marking.
Using the picture below, the ETRTO marking 47-622 means that the 622 Swytch Wheel would fit this tyre. ETRTO markings always take the form of ##-###. Once you find the ETRTO marking, you can use the table below to match it to the Swytch Wheel size.
A final option is to measure the diameter of the rim in mm, which is the approximate equivalent of ETRTO:
- Place the tape from the centre of the wheel to the tyre's inner edge where it meets with the rim. This is the inner radius of the tyre (R). [E.g. 317mm].
Are you still unsure?
If you are still unsure, feel free to open a support ticket and we will be happy to assist you.
To be the first to know our next stock drop is live, don't forget to register to our waitlist here: https://www.swytchbike.com/