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Old 03-19-2012, 12:39 PM   #1
Johnf3 OP
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Adventure 320mm Single Rotor Conversion w/ STOCK caliper

I know several have converted over to a four piston caliper and a 320mm disc. I am looking to simplify this (yes I know at the cost of overall braking performance) and use a 320mm disc with the stock caliper.

There are lots of kits out there that convert all KTMs to this set up. Basically they come with the new rotor and the caliper relocating bracket. Any reason these won't work for the 950? My bike gets ridden mostly off road, so I will still have plenty of braking power, and even on road, I generally am running a front knobby where the tire is the limiting factor on brake power, not the brakes themselves. I would love to drop another 5 or 6 pounds of weight.

Anyone know if this will work? CJ--offer a kit with a machined bracket and I will pre pay!
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Old 03-19-2012, 12:52 PM   #2
Sumi
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Quote:
Originally Posted by Johnf3 View Post
I know several have converted over to a four piston caliper and a 320mm disc. I am looking to simplify this (yes I know at the cost of overall braking performance) and use a 320mm disc with the stock caliper.

There are lots of kits out there that convert all KTMs to this set up. Basically they come with the new rotor and the caliper relocating bracket. Any reason these won't work for the 950? My bike gets ridden mostly off road, so I will still have plenty of braking power, and even on road, I generally am running a front knobby where the tire is the limiting factor on brake power, not the brakes themselves. I would love to drop another 5 or 6 pounds of weight.

Anyone know if this will work? CJ--offer a kit with a machined bracket and I will pre pay!
I think that the stock master cylinder is a littlebit too much for only one (2 piston) caliper.. Maybe go for the SE's master during the conversion.
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Old 03-19-2012, 01:52 PM   #3
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Quote:
Originally Posted by Sumi View Post
I think that the stock master cylinder is a littlebit too much for only one (2 piston) caliper.. Maybe go for the SE's master during the conversion.

I actually would go with a radial master cylinder designed for a single caliper set up, but yes, that is correct. Doesn't matter though if the off the shelf caliper relocater does not fit the Adventure Brembo caliper.
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Old 03-19-2012, 02:09 PM   #4
brents347
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The off the shelf KTM-bike relocation bracket does NOT fit the 950. I was able to take a KTM dirt bike bracket made out of billet aluminum and have it modified to work for my 950. YRMV.
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Old 03-19-2012, 02:23 PM   #5
cjracer
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Quote:
Originally Posted by brents347 View Post
The off the shelf KTM-bike relocation bracket does NOT fit the 950. I was able to take a KTM dirt bike bracket made out of billet aluminum and have it modified to work for my 950. YRMV.
Same here.

I've finally gotten the next batch of Billet LC8 baskets started, once those are done.... I'll look into a 320 bracket kit for the ADV and SE bikes. I already have a working version with over 30,000 miles on it, so it's been tested enough.
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Old 03-19-2012, 02:23 PM   #6
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Quote:
Originally Posted by Sumi View Post
I think that the stock master cylinder is a littlebit too much for only one (2 piston) caliper.. Maybe go for the SE's master during the conversion.
That is a no no. It will work fine, provided you are prepared to apply a little bit more braking force to your lever. In fact you will end up with a very fine performing braking system with a very crisp feel and no sponginess whatsoever (single 320 disc + single caliper + adv master).

The SE master holds very little oil and can be very dangerous very fast with repeated hard braking. Also it's piston area is far from ideal for the caliper it drives on the street (but it is fine offroad).
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Old 03-19-2012, 02:31 PM   #7
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I run the SE master with a 320 rotor on my ADV as I didn't like the feel of the ADV Master with the single caliper. The ADV master was on the bike so it was easyy to test and say, YES or NO, this won't work for me. Not to say everyone has to run the SE master.

I've not had any issues in my "normal type" of riding over the last 2 years with the SE master. Maybe if all I was doing were track days, I'd see it, but I think for your Casual rider they'd never see an issue.

Everything can always be better, depends on if your personal riding style and terrain if you really need it.
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Old 03-19-2012, 02:57 PM   #8
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Quote:
Originally Posted by cjracer View Post
Same here.

I've finally gotten the next batch of Billet LC8 baskets started, once those are done.... I'll look into a 320 bracket kit for the ADV and SE bikes. I already have a working version with over 30,000 miles on it, so it's been tested enough.
What has to be modified? If I sent you one could you do it for me, since you already figured it out? I need a project while I am waiting for my 950 CPR air filter.
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Old 03-19-2012, 03:09 PM   #9
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Hi John, Email me. What you have/need/when you need it? I'll see what I can do.
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Old 03-19-2012, 03:26 PM   #10
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Quote:
Originally Posted by mousitsas View Post
The SE master holds very little oil and can be very dangerous very fast with repeated hard braking. Also it's piston area is far from ideal for the caliper it drives on the street (but it is fine offroad).
Can't say I've noticed any problem in 6000 miles of street use. I hated the feel of the stock 950 master cylinder with a single 300mm disc. Feel and performance seems fine to me.

The SE caliper crosses to the 2007 950adv and the SE is street legal in the litigious USA

[hmmn 2005/2006 950 front brake caliper fiche page seems a bit messed up wrt #1/#2. http://partsfinder.onlinemicrofiche....=13&A=316&B=19. The fiche @munn also shows #1/#2 as the entire caliper but the part#s refer to "hose guides" so I guess scoring an entire caliper for $6 isn't likely ]

CJ I'd be interested in a 320mm kit also depending on cost. I run a knobbie on the front that imposes it's own traction limits but I wouldn't mind something in between single and dual.

crazybrit screwed with this post 03-19-2012 at 03:39 PM
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Old 03-20-2012, 05:57 PM   #11
Johnf3 OP
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Quote:
Originally Posted by brents347 View Post
The off the shelf KTM-bike relocation bracket does NOT fit the 950. I was able to take a KTM dirt bike bracket made out of billet aluminum and have it modified to work for my 950. YRMV.
Brent,
Do you remember which bracket you bought and what had to be modified?
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Old 03-20-2012, 07:50 PM   #12
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I would buy one....
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Old 03-20-2012, 07:55 PM   #13
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I've got all the bracket info here. Let me look Thurs- wed I'm busy. But I'll see what it would take to get brackets, have them modified for a single sided left caliper setup. (Be easier than sending your brackets to me to be modified) I should also be able to supply the 320 rotors if interested.

I'll see if I can squeeze in a batch of 6.
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Old 03-20-2012, 07:58 PM   #14
brents347
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Quote:
Originally Posted by Johnf3 View Post
Brent,
Do you remember which bracket you bought and what had to be modified?
I got mine used from a guy who had a SM set-up for a 450/520 RFS bike.

As I recall, the caliper sliding pins were too far apart by about 2 or 3mm so I welded closed the old lower pin hole (the pin is thread in) and then redrilled the caliper bracket on the proper pin spread.

Does that make sense?
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Old 03-20-2012, 08:50 PM   #15
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Quote:
Originally Posted by cjracer View Post
I've got all the bracket info here. Let me look Thurs- wed I'm busy. But I'll see what it would take to get brackets, have them modified for a single sided left caliper setup. (Be easier than sending your brackets to me to be modified) I should also be able to supply the 320 rotors if interested.

I'll see if I can squeeze in a batch of 6.
If this bracket would work on a SE I'm in for one!
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