Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > General Motorcycles only > Brake lines

[paynep]

Originally Posted by Shazaam!

What’s interesting is that brake line sizes are commonly either -3 (3mm I.D.) or -2 (2mm I.D.). 2mm lines will expand less circumferentially than 3mm lines. So if you run two lines, use the 2mm size to negate the spongy effect of the longer line length. Two 2mm lines will move almost the same amount of fluid as one 3mm line so flow restriction is not a concern.

Now that is something I'd never considered. And maybe why I've never managed to get the brake setup on my 851 to feel as good on track days as my identically padded/disc'd/calipered/master cylindered old 888.....

Just goes to prove that you can still get good info from the DSC site.

Cheers Larry