The tire profile that is being used for both the 24x2.25 and 20x2.25 K1238, the 24x2.20 K1227, has a measured SW of 57.44mm on a 24mm rim, at max pressure (65psi) after 24 hours. With these tires, including the 24x2.20 K1227, being specified/designed on 26mm rims, I fear that they will/do measure outside of the 50% tolerance. They would be rough calculated to measure 58.24mm on a 26mm. Can you please have the 24x2.20 K1227 tire measured again, on its design 26mm rim?