The 5641 is an original Sebo spec 0.75m cable as fitted to Sebos and similar to earlier Dysons. 0.75mm is pretty standard.
1.00mm is 33% thicker internally and harder wearing.
We also do an
1104 black flex that is 1.00mm, and a
similar dark grey one DYS01 made for Dyson that is also 1.00mm.
Because none of the aftermarket suppliers made flexes good enough for what we wanted, that's the reason we did our own. Most suppliers obsess about price only. With low price comes crap quality. We think people are happy to pay a couple of quid more for a good product. We wanted good flexes. We found a good company that makes good flexes.
We use them on all our own machines and sell them each and every day without issues. Many in the trade are now buying them too.
Some people are happy to pay less for crap. We like to turn out good products when they have our name on them. I abhor mediocrity and poor quality to meet a price point. Especially with something as important as a flex. Its just not what we are about. Our flexes are great quality.