For tyres that have failed the Giant test protocol, we are working with the tyre brands so updates can be made to make them ready for our hookless rims as soon as possible.
Please be aware that if you choose to use a tyre with an indicated maximum pressure above 72.5psi (5 bar) that is not on the list of tyres that have passed the Giant test protocol, YOU DO SO AT YOUR OWN RISK, as the tyre may not function properly with the Giant hookless WheelSystem.
Please note that if the maximum pressure indicated on the sidewall of a tyre is below 72.5psi (5 bar), the tyre is tubeless compatible, and is not indicated as being incompatible with hookless rims, it can be used with Giant hookless WheelSystems and does not have to appear on the 'what tyres can I use?' chart.
Although Giant tyres are designed for best use with a Giant hookless rim, it is possible to use a Giant tyre on a hooked bead rim.
If necessary, you may use an inner tube on a Giant hookless rim, so long as the tyre you are using has passed the Giant test protocol. However, please note that Giant hookless rims are designed to perform best when set up as tubeless and used without an inner tube.
Please review the test protocol for a detailed explanation of the testing for tyres on Giant hookless rims, as well as for more information on the test results of the individual tyres themselves.