Hi micael!

Where are you living? There are some TH online shops for different countries
Pink strap? Do you own the Connected Modular 41? Because the pink strap for the Modular 45 is only from the Giro d’Italia Edition, not sold separately

 

These are all the available accessories for the CM45, including the yellow rubber strap (mark the filter for the CM45):
https://www.tagheuer.com/en-gb/watches/tag-heuer-connected/accessories-and-straps

It’s the link to the TH online shop in England, but I don’t know if they can send you the straps to Sweden... If not, I guess ebay could be another option. Just look for the Ref. number: 1FT6082 for the titanium buckle, and 2FT6082 for the black buckle



For instance, this German company is offering this yellow rubber strap:
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.es/ulk/itm/173522854193

Unless you have huge wrists, when you order these straps online, be sure you are going to receive the updated/short version of the straps (same Ref. number, but different size). The shortest half of the strap measures 9.5cm in the old version, and 7.5cm in the updated version. Ask this size to the seller before buying it, to be sure.