TYRE RETENTION AND COMPATIBILITY
Like any modern tubeless system, the tolerances of the tyre bead diameter and hookless rim bead seat diameters must be carefully calibrated in order to create an airtight seal that will allow the tyre to stay on the rim and the rider to slow to a safe stop in case of puncture. If the tyre bead diameter is too large, it will not match the rim bead seat diameter. Likewise, if the bead material isn’t strong or stiff enough under high-pressure loads, the tyre bead will stretch over time and it will lose its original diameter. If rim manufacturers do not work directly with tyre manufacturers when designing new hookless rims, tolerances and bead materials can vary. This can make it difficult to pair tyres and hookless rims from different manufacturers.