Hi Marko,
the braided (“Steel Flex”) brake lines are much better !
The feeling of the “pressure point” is much more exactly than with rubber lines. Overall braking performance is limited to blocking the wheel, but the way and the feel to come to this point or to avoid it, is much more precice using the steel flex lines.
In the end they will last for ever, while rubber lines needs a replacement every four (4) years! Standard regulation with all major bike manufacturers, but who does that ?
Always use any kind of plastic coated ones (you may choose the color). This will work against dirt getting into the metal mesh (uncleanable!) and sort out any damage done to other components (front mud guard, frame, fork, horn, etc.)
Selecting steel flex lines should match original fixing points and angles of the attached joint brackets(?).
Steel flex lines are ready available incl. a certificate (TÜV, MOT, etc.) for your model (S1, don’t think so) or may be manufactured following your specification incl. certificate.
Typically no or just minor price difference.
Cheers, Michael
