Brake lines. 1 into 2 or 2 x 1

[chrisk]

Gents
Can anyone here explain the advantages of: 2 separate lines from MC to each calliper, over, 1 line from MC to callipers via the splitter?
It seems common practice on track bikes to have the forementioned. But I'm buggered if I can understand why.

 

[Terry Dymond]

Personally haven't got a clue (clueless of Adelaide ???)
Should start an interesting discussion.

 

[Terry Dymond]

Two lines instead of three?
Three banjoes instead of six?

 

[Cosi]

splitter is a good air trap point and another junction to impede smooth flow

 

[sweetas]

Two lines instead of three?
Three banjoes instead of six?

Its actually 4 banjo's instead of 6. 

 

[Dellortoman]

And 3 banjo bolts (one double) instead of 6.

If you want a hydraulic brake light switch you'll need it incorporated into the double banjo.
Like this one http://www.ebay.com.au/itm/New-DOUBLE-BLEED-Hydraulic-Banjo-Brake-Light-Pressure-Switch-M10-x-1-00mm-/390805906125?pt=UK_Motorcycle_Parts&hash=item5afdd8e2cd

I prefer the splitter for road bikes because it's a bit less cluttered at the handlebars.

 

[Lav the impala]

improves braking, single line to splitter manifold restricts flow, cheap upgrade, try it, you'll like it.

 

[sfcpiet]

Don't think there is a restriction in the splitter, bores are plenty big enough.

Laws of hydraulics/pneumatics (simple physics actually) states pressure is even within the entire system as long as there are no restrictions, so pressure should be the same, no matter which set up you choose, given hose and connector cross-sections are the same.  A mechanical brake switch may may a tiny little difference compared to a hydraulic switch, as this requires a small amount of fluid to be shifted when it is actuated (unnecessary for a track bike anyway).

The splitter is usually omitted on trackers/racers to simplify things a bit, as well as saving a couple of grams of weight.  Eases bleeding the system a bit as well.

I have never felt any difference between the 2 set-ups.

piet

 

[markQLD]

I prefer the splitter for road bikes because it's a bit less cluttered at the handlebars. 

+1.  & it throws the lower hoses back, so they have to do a nice loop down to the calipers for the suspension travel.

& elPrez,  just how many litres per farken second flow rate are ya pumping through ya brake farken lines ??    ???

,,  and another junction to impede smooth flow 

ok, bak to me rum.  cheers,  Mark  (drunk)

 

[Cosi]

bout 30ml 

 

[markQLD]

wot,,  30ml !!    in ya farken dreams elPrez.
i've followed ya & ya hardly ever use ya farken brakes. 

& a bloke needs another rumbo.  toot-toot.
  Mark

 

[Simonr501]

I agree with Piet, there is practically zero flow through the lines!
When you squeeze the brake lever the force should be instantly transmitted to the brake pad, otherwise you have what is termed - a leak!

 

[sweetas]

bout 30ml 

Isnt that a shot?

 

[Laverdalothar]

I have never felt any difference between the 2 set-ups.

piet

+1

Have both setups, no difference I could feel... but maybe I am just not sensitive enough...  :-[

 

[Cosi]

Isnt that a shot?

8)

 

[markQLD]

ay,  reckon you blokes are having a cheap shot.

mine's a triple.    :-*

  Mark

 

[motoddrob]

I gave that some thought when rebuilding the Motodd and buying new hoses. Went with the splitter as the brake switch is in a good position and the hoses are in the right spot for a neat connection to the calipers. Can't see how it would make any diff to the braking performance.

 

[Davo]

Isnt that a shot?

In the dark?

 

[padlock]

I'm going for two lines on jenny just because i like the look.

    FFF