Tire trim ring

The tire trim ring (40) has a clamping web (2) that is formed between a wheel run flange (44) of a rim (41) and a tire bead (43) of a tire (42). An annular wall (4) is arranged in the region of a side wall (51) of the tire. The annular wall is connected with the clamping web via a connecting portion (6), when the circumferential outer edge (14) of the side wall is pushed by applying pressure to the pressure surface area (F).