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Old 04-07-2005, 10:21 AM   #1
SOLO LOBO OP
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Joined: Mar 2004
Location: Shoreline, WA
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R100GS Nissin 4-piston caliper conversion

OK, first here is the picture that made me think "why can't I do this?, I'm really cheap and this looks very doable!" (picture from an ADVR member Steve in NZ...)

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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 09-30-2008 at 01:52 PM
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Old 04-07-2005, 10:22 AM   #2
SOLO LOBO OP
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Joined: Mar 2004
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Parts list

Here is what you need to buy, and where I got my stuff:

Nissin 4-piston caliper conversion for R100GS


DISCLAIMER:



I am not a mechanic, engineer, or expert in any way in any issue related to brake conversions. I do not know if this conversion is safe, or even a good idea. Proceed at your own risk! This may be a really bad idea! Just because I did it doesn't mean you should even consider it!


Parts list

**EDIT added 03/17/2008***

ADV Member HPMGuy is producing the adapter that is mentioned below. Please send him a PM or email if you are interested in one... the plans are below for any "do-it-yourselfers".... Guy's work is first rate **end edit***



Caliper: Nissin 4-piston fitted to Suzuki GSXR's 92-93 600cc, 88-93 750cc and 89-92 1000cc. As these are mounted behind the fork leg on the GSXR's, and in front of the legs on the BMW be sure to buy the left front caliper as you will be turning it around to mount on your BMW. Got mine off eBay for $5, expect to pay up to $25



Stainless brake line: The stock BMW line to the steel hard line won't work. I bought a 50"? ss line off of eBay for $25. I think one as short as 45"? may be fine. This length allows for the line to be run through the fender like the stock line and routed right up to the stock master cylinder.



Brake Pads: I bought a set of EBC FA145's, and believe the other options are:

SBS624, Vesrah VD 343, DP DP213 and Ferrado FDB557.

Check to make sure. I got two sets of EBC's off ebay for $25.



Hardware:

Upper bolt to attach the caliper to the fork leg I used the stock BMW caliper bolt and tapped the aluminum chunk for it. M10 x 1.5 (30mm)



Upper bolt to hold the alum adapter to the upper caliper mountNo stainless Allen-heads available in this size says my source. The only choices were black Allen-heads that seem to rust if shown a picture of water and what you see in the picture. M10 x 1.25 (40 mm)



Lower bolt to hold the lower caliper mount to the fork leg­ - No stainless Allen-heads available in this size says my source. The only choices were black Allen-heads that seem to rust if shown a picture of water and what I bough see picture. M10 x 1.25 (25mm)
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 03-17-2008 at 01:14 PM
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Old 04-07-2005, 10:23 AM   #3
SOLO LOBO OP
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I have all of the specs for the adapter available in a PDF that another ADVR converted to a usable and attractive drawing... if you want it send me a PM.

**NOTE** I had to machine the caliper mounting "ears" to remove 0.0625". This moves the caliper to be approximatley centered in on the rotor... you should do your own measurements for this one!

**EDIT added 03/17/2008***

Member HPMGUY is producing the adapter that is mentioned below. Please send him a PM or email if you are interested in one... the plans are below for any "do-it-yourselfers".... Guy's work is first rate **end edit***

And machining the word "Nissin" off of the caliper is optional.... now if I could just figure out the CNC mill to add "BMW" to the caliper I'd be set...
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 03-17-2008 at 01:13 PM
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Old 04-07-2005, 10:24 AM   #4
SOLO LOBO OP
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and the finished product?

Here is my version... (not made by HPMGuy, his is much nicer looking!)

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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 03-17-2008 at 01:14 PM
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Old 04-07-2005, 10:25 AM   #5
SOLO LOBO OP
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Location: Shoreline, WA
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and one more photo...



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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 04-08-2005 at 08:37 AM
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Old 04-07-2005, 10:27 AM   #6
SOLO LOBO OP
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and one more...


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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 04-08-2005 at 08:38 AM
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Old 11-17-2007, 12:40 PM   #7
lesman
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Other adaptor uses

http://www.advrider.com/forums/showt...=285146&page=2

These bikes are crying for 4 piston Brembo's or 4 piston Nissin's or 6 piston Tokico's


Solo, this is your niche.



Les
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Old 03-22-2008, 07:54 PM   #8
x3300
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Joined: Mar 2005
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Hi,

I had an adapter made so I could mount a 320mm disk from a Ducati. I now have a late model 4 piston BMW (Brembo) caliper, but at first I used the stock GS caliper, and it worked very well with the big disk. Send me a mail if you want more info or photos.

-x3300
Attached Images
 

x3300 screwed with this post 03-22-2008 at 08:00 PM
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Old 03-22-2008, 08:27 PM   #9
johno
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x3300, I think quite a few of us would be interested in this setup.
What model ducati did the disc come from?
How about posting any info up here.
Looks good.
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Old 03-22-2008, 09:12 PM   #10
x3300
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Joined: Mar 2005
Location: San Jose, CA
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Quote:
Originally Posted by johno
I think quite a few of us would be interested in this setup.
How about posting any info up here.
I'll need to dig up the info, but I'll make a post that tells how I did it. Until then, here is another photo.
Attached Images
 
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Old 03-22-2008, 08:30 PM   #11
richarddacat
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Quote:
Originally Posted by x3300
Hi,

I had an adapter made so I could mount a 320mm disk from a Ducati. I now have a late model 4 piston BMW (Brembo) caliper, but at first I used the stock GS caliper, and it worked very well with the big disk. Send me a mail if you want more info or photos.

-x3300
oooh, I like that

been wanting to get my solid disc drilled somewhere but I would like to see more on your little mod,

PM if you rather.
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