28-622 GP5000 S TR mounted on 25int/
29 32 ext measures 30.7mm @ 64PSI, and the wheel is specially designed for 27/28mm, on my road bike. On my commuter/trek, 30-622 and 32-622 on 24 int/ 29 ext come out to 32.3 and 34.4 respectively. The wider the internal width, the wider the cross section.
Originally Posted by
redcon1
My 2019 Roubaix Expert came with the Roval Rapid C38 wheelset (21mm Internal/26.6mm external width) mounted with Specialized Turbo Pro (Tubed) tires in 28mm. The actual width of the tires mounted is 30.1mm. I have a set of GP5000 tires ready to mount tubeless and will be interested to see their actual mounted width.