TahoesHateMe

by Adospeed


You will here the term -3 (dash three) often in brake line discussions with automotive or motorcycle applications. It is the most commonly used hose by Goodridge for applications on automobiles, ATV's and motorcycles. Our -3 Hose we use is a 600 series hose. It is described as hose that is compatible with all brake and clutch fluids.

-2 hose (dash two) is not as widely used but is still prevelant in motorcyling. One of the AMA race teams I work with uses -2 on the front and -3 on the rear. Why? What the difference?

The difference between -2 and -3 is the diameter of the hose. Where the -3 hose has an outer diameter of 6.45 mm, the -2 hose has an outer diameter of 5.0 mm. What does that mean to us in practical terms?
It means it has a smaller diameter hose to which to flow fluid through. As a result of that smaller diameter, it is more sensitive to brake lever inputs as well as having a higher threshold to pressure (19,800 psi burst pressure as opposed to 12.750 on -3).

Who would use this? Well most people in motorcycling think that the Race teams would........wrong. Like I mentioned above, only one of the AMA teams I work with use -2 hose and the rest use -3 hose.

Why wouldnt they use the -2 instead? I posed that question to Joey Lombardo, Crew Chief for Tommy Hayden (2004 AMA Supersport Champion) and his reply was that the "intial bite" of the -2 did not make Tommy comfortable and that his job (Joey's) was to make Tommy as comfortable on the bike as possible. IT comes down to rider preference, simple as that.

So there you have a little education on two main hose types. Hope you enjoyed the reading.