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Author Topic: Dual front disc distribution splitter  (Read 2467 times)

Offline crguy

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Dual front disc distribution splitter
« on: February 23, 2014, 04:33:39 PM »
Hello, converting to twin front disc and wondering where the stock 3 way hose splitter mounts. thank you.

AlfromNH

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Re: Dual front disc distribution splitter
« Reply #1 on: February 23, 2014, 05:10:51 PM »
It bolts to the headlight/instrument bracket, right in front of the steering head.

Offline crguy

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Re: Dual front disc distribution splitter
« Reply #2 on: February 23, 2014, 05:20:00 PM »
Thanks Al...

Offline marcmax

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Re: Dual front disc distribution splitter
« Reply #3 on: February 23, 2014, 06:13:42 PM »
Since I wasn't using the stock headlight mount on mine R65LS, this is what I came up with.
Keep your bike in good repair: motorcycle boots are not comfortable for walking.

1982 R65ls    1984 R65ls

Offline crguy

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Re: Dual front disc distribution splitter
« Reply #4 on: February 23, 2014, 06:39:42 PM »
Marc thanks!

Offline Tony Smith

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Re: Dual front disc distribution splitter
« Reply #5 on: February 23, 2014, 07:43:15 PM »
Can I add further that using the otherwise redundant 4th "port" on the splitter you can install a VW Kombi (1968-1974) brake light pressure switch, which is orders of magnitude more reliable than the stock handlebar switch.
1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline Ed Miller

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Re: Dual front disc distribution splitter
« Reply #6 on: February 24, 2014, 11:12:54 AM »
And one less wire on the handle bar....  Did you remove the brake lever switch and plug the hole somehow, or just leave it disconnected?

Ed Miller
'81 r65
Falls City, OR

AlfromNH

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Re: Dual front disc distribution splitter
« Reply #7 on: February 24, 2014, 01:32:54 PM »
Mine('79) had the switch on the splitter stock, or at least that's how it was when I received it:

Offline Adrian

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Re: Dual front disc distribution splitter
« Reply #8 on: February 24, 2014, 10:18:52 PM »
Quote
Mine('79) had the switch on the splitter stock, or at least that's how it was when I received it:

Thanks for this - I have this unit too and now I know exactly where it belongs - that VW switch is very useful to know too  ;)
1984 R65 (860)

Offline Tony Smith

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Re: Dual front disc distribution splitter
« Reply #9 on: February 24, 2014, 10:41:05 PM »
Quote
Quote
Mine('79) had the switch on the splitter stock, or at least that's how it was when I received it:


Ah! I didn't know what was stock, let's face it we are dealing with 35 year old motorbikes. My wife's came stock with a single disc and a friend visiting Germany bought the complete twin disc conversion. Whilst fitting it I noticed that the handlebar switch was dodgy and investigation revealed that a VW brake light switch screwed in perfectly in place of the blanking bolt.
 
To answer someone else's question I removed the wiring from the handlebars and decided that the hole where the switch had been was virtually invisible. I looked this morning and a wasp has long ago made a nest in the hole and sealed it with mud.
1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline Ed Miller

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Re: Dual front disc distribution splitter
« Reply #10 on: February 25, 2014, 11:33:17 AM »
Quote
To answer someone else's question I removed the wiring from the handlebars and decided that the hole where the switch had been was virtually invisible. I looked this morning and a wasp has long ago made a nest in the hole and sealed it with mud.

That sounds just like my place!  I was replacing a screw-in bulb light fixture in my shop with a big, bright fluorescent one, and the old porcelain fixture was completely full of mud and wasp nests.  All uninhabited, thankfully.  
Ed Miller
'81 r65
Falls City, OR

Offline Rob Valdez 79 R65

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Re: Dual front disc distribution splitter
« Reply #11 on: February 26, 2014, 02:14:08 AM »
Quote
Mine('79) had the switch on the splitter stock, or at least that's how it was when I received it:
That was the set-up on the '79-'80 (and '78 in Europe) R65s.

I had to replace my switch when I ignored the brake fluid maintenance long enough for the switch to gum up, as well.  :-[


Offline steve hawkins

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Re: Dual front disc distribution splitter
« Reply #12 on: February 28, 2014, 02:13:35 AM »
If course you could ditch the lot and use banjo bolts fittings and two brake lines.  One leading from the master cylinder down to the right hand caliper, and then another leading from the right hand caliper to the left.  Hydraulic operation of the brakes will be fine, and it will be a lot tidier.  Have to make other arrangement for brake light operation - i.e. dab the back brake - which you should be doing anyway.  Parts List:

2 normal banjo bolts and copper washers.
1 double banjo bolt with copper washers to be used on right hand caliper.
2 brake lines, one longer that the other.  
Banjo fittings, the ones on the calipers should have a bind in them to aid routing.  The one on the master cylinder end should straight.

Here is a picture.

Rev Light
Steve Hawkins R100 (that wants to be an R65)

AlfromNH

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Re: Dual front disc distribution splitter
« Reply #13 on: February 28, 2014, 06:10:58 AM »
Quote
If course you could ditch the lot and use banjo bolts fittings and two brake lines.

That's a nice clean look. I thought about doing that, kinda wish I had. There are banjo bolts available with a built-in switch also.

Offline crguy

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Re: Dual front disc distribution splitter
« Reply #14 on: March 01, 2014, 07:08:39 PM »
Steve gave me an idea, how about removing left caliber bleed and run line from left port to the right caliber and leaving the stock line from MC to left caliber.