Question about Atera Strada DL 3

Bicycles with tyre widths up to 3.0 inches (76.2 mm) and tyre widths up to 4.0 inches (101.6 mm): - Can the ratchet bands be replaced? - Do you have the snap-in bands for tyre widths up to 3.0 inches (set of 4 pieces, Prod.No. 022 730) in the shop? - Do you have the snap-in bands for tyre widths up to 4.0 inches (set of 4 pieces, Prod.Art.No. 022 735) in the shop?