Brake lines again.

[tanneman]

Can anybody please point me in the right direction. Looking to replace the brake lines with Hel or Goodridge. By consensus the option of having 2 lines from the master cylinder to the calliper seems to be better. Can anyone post a photo of this set-up? I'm a bit concerned about routing of the lines and the split at the lower fork brace. I suppose that the lines must be of the same length with this configuration or I'll get different pressures at each calliper. Is it a kit readily available from Hel or Goodridge or do I have to make one up on their order page?

Having looked at the online website from Goodridge they offer 2 kits, an 1103 and 1107 for the non abs. What is the difference? Hoping someone here would know the answer as I cannot contact them by phone. Just spoken to Hel and they will make a set to spec. Advice still needed.

[f90x]

I had Hel on my 1100. I had them make them to my length specs as I was going to use barbacks. I can't remember the length I had but take some string and maybe with a mate to hold it in the right places measure like that. Don't forget, if this is for an 1100 the union at the master cylinder uses a BMW tool. I discovered this 'after' bleeding the system empty and then had to put it all back together again. In the end I got Jap and German to do it and change the bars to the comfort style at the same time.

[Corvus]

Can anybody please point me in the right direction. Looking to replace the brake lines with Hel or Goodridge. By consensus the option of having 2 lines from the master cylinder to the calliper seems to be better. Can anyone post a photo of this set-up? I'm a bit concerned about routing of the lines and the split at the lower fork brace. I suppose that the lines must be of the same length with this configuration or I'll get different pressures at each calliper. Is it a kit readily available from Hel or Goodridge or do I have to make one up on their order page?

Having looked at the online website from Goodridge they offer 2 kits, an 1103 and 1107 for the non abs. What is the difference? Hoping someone here would know the answer as I cannot contact them by phone. Just spoken to Hel and they will make a set to spec. Advice still needed.

Hi

It may be possible to get them equal length but tbh I would concentrate more on getting a good route for each one, taking into account suspension bottoming (I'm sure you will).

IMO the system can be viewed more as a static pressure system than dynamic and as such the small differences in hose length surely won't create pressure differences. Ok, pipe loss exists even under static conditions, but in a system like this the difference down each line will be practically immeasurable, no?

I would imagine braking torque differences on each side are far more likely to occur due to differences in caliper piston seal drag/deformation and even more likely, differences between each set of pads and how they contact the disc and frictional differences of the pad metalwork in the caliper/pins.

[f90x]

I got mine the same length. Routing will be fine get some of the correct clamps that hold the cables together.

[nab 301]

Tbh I've purchased kits for other bikes from hel and they were supplied with different length hoses , it never occurred to my pea sized brain that there could be a pressure differential , I assumed that pressure in a sealed system was equal.? I've different length hoses on my 11S with no noticeable problems.
The banjo on the hel lines isn't adjustable for orientation which can be a pain .

[dave the german]

Hel advised me to send the lines. Reason they don't list a kit is because of the differing angles of the banjo bolts - that's wot they told me anyway

[Bikerhoss]

Not the best pics as I wasn't trying to show the brakes, but you can see double banjo, twin lines, same length, Goodridge, purchased from here

http://www.motorsport-tools.com/goodrid ... eline.html

[tanneman]

Thanks for the replies guys. I had a word with Peter from Scorpio Racing. There is a company in Milton Keynes that will make me a kit while I wait. Perfect.