Author Topic: Rear wheel conversion question  (Read 680 times)

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Offline esmoojee

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Rear wheel conversion question
« on: June 06, 2018, 04:21:39 pm »
Hey guys,

So my question is this... what should the diameter of the back brake disc be with the mean streak rim? It calls for a Front disc off a Vulcan Nomad but according to the specs they are 320mm. It says to cut down a rear disc off a Mean Streak to 280.  Wouldn’t the nomads need to be cut down as well? Or am I confused? The stock rear disc on a Nomad is 270... couldn’t I just use a Nomad rear disc?

Offline Mettler1

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Re: Rear wheel conversion question
« Reply #1 on: June 06, 2018, 07:47:40 pm »
'94 Concours 115,000 miles-- 7th gear,2MM,KB fork brace,Over flowtubes,Stick coils,Tcro shifter,GPS,SiSF'sTorque cams,SPOOKFAK,block off plates, SS brake & clutch lines,KB risers, FENDA EXTENDA, emulators, SiSF carb Spa, Delkevic exhaust, Murphs' knee savers +grips, etc

Offline esmoojee

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Re: Rear wheel conversion question
« Reply #2 on: June 06, 2018, 08:02:15 pm »
Thats where I got the info from. It states that the mean streak needs to be cut to 280mm but the nomad front rotor stock is 320mm. I’m just wondering why you would cut a 300mm disc and not a 320mm disc.

Offline Jim Snyder

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Re: Rear wheel conversion question
« Reply #3 on: June 06, 2018, 08:03:17 pm »
My conversion had the rotor on it when I got it and my stock rear caliper and bracket worked fine.
"Some days you're the windshield, and some days you're the bug" Get used to it cause thats life !!!

Offline esmoojee

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Re: Rear wheel conversion question
« Reply #4 on: June 06, 2018, 08:11:08 pm »
Thanks Jim, did you buy it from a member here or on ebay?

Offline Kelly E

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Re: Rear wheel conversion question
« Reply #5 on: June 06, 2018, 08:40:14 pm »
I just bought a pair of nomad front discs(I can't remember the year) disc's last month off of fleabay and they are the correct 280mm diameter with 7 mounting bolts for $50. I have test fit the disc to the wheel and now all I need is to have the machine work done and wear out my current tires. :)
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Offline esmoojee

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Re: Rear wheel conversion question
« Reply #6 on: June 06, 2018, 09:09:29 pm »
Interesting, maybe the specs i’m reading are off.

Offline esmoojee

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Re: Rear wheel conversion question
« Reply #7 on: June 06, 2018, 09:33:11 pm »
Yea, the specs I found were definitely wrong. Thanks everyone!

Offline Daytona_Mike

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Re: Rear wheel conversion question
« Reply #8 on: June 06, 2018, 11:42:12 pm »
Yes you have to order one more rotor bolt and as the old stock rim had 6 bolts and the new rim has 7.
I believe that is a typo and should be .030 and not .300
I did the new rotor from Murphs
A FRONT brake rotor from a Kawasaki Vulcan Nomad, 1999-2004, either used or Kawasaki P/N 41080-1447-CM, or EBC P/N MD4150RS

That is a great mod to do.  :great: :great:
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Offline Jim Snyder

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Re: Rear wheel conversion question
« Reply #9 on: June 07, 2018, 12:19:28 am »
Thanks Jim, did you buy it from a member here or on ebay?

If you need and extra rotor bolt I have several extra. Just PM me your address and I will mail you a couple.
"Some days you're the windshield, and some days you're the bug" Get used to it cause thats life !!!

Offline Kelly E

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Re: Rear wheel conversion question
« Reply #10 on: June 07, 2018, 12:51:29 am »
Yes you have to order one more rotor bolt and as the old stock rim had 6 bolts and the new rim has 7.
I believe that is a typo and should be .030 and not .300
I did the new rotor from Murphs
A FRONT brake rotor from a Kawasaki Vulcan Nomad, 1999-2004, either used or Kawasaki P/N 41080-1447-CM, or EBC P/N MD4150RS

That is a great mod to do.  :great: :great:

So it is .030 not .300. That could have sucked to take too much off the Meanstreak wheel. I sure am glad you said that, thanks.
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Offline Yamahawk

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Re: Rear wheel conversion question
« Reply #11 on: June 07, 2018, 02:11:33 am »
You know, re-inventing the wheel is not a bad thing, but really unnecessary. If you use the Entire Mean Streak wheel/caliper/rotor assembly, all you have to do to fit it, is machine off a small amount of the outer side of the caliper bracket. Then, clock the rotor at 8:30/8:45 to the rear of the disk, and make a longer caliper stay that catches the Mean Streak bolt hole. For rotor clearance, I cut the inner part of the 'U' bracket on the stay, and used the appropriate bolt and length to fasten it. Works great, have about 12k miles on the Mean Streak wheel done this way, saves all the cost go the wheel machining for more useful things.... :)
Charlie
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Offline Yamahawk

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Re: Rear wheel conversion question
« Reply #12 on: June 07, 2018, 02:17:02 am »
All Things work together for good, for those who Love God, and are the Called according to His Purpose. - Romans 8:28

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Offline Bob_C_CT

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Re: Rear wheel conversion question
« Reply #13 on: June 07, 2018, 08:04:29 am »
I wholeheartedly believe the .300" depth is correct, I think I had more chips than .030" worth of metal removal would of produced.
I had to tap the rotor holes deeper and .030" metal removal wouldn't of caused a reason to tap deeper.
Someone that has done this not so long ago or has better memory than me please confirm.
97 C10,ZRX Front, Meanstreak rim

Offline Jim Snyder

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Re: Rear wheel conversion question
« Reply #14 on: June 07, 2018, 09:31:21 am »
It is .300. Check the article in the tech pages section under wheels that's where I just verified it.
"Some days you're the windshield, and some days you're the bug" Get used to it cause thats life !!!

Offline Bob_C_CT

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Re: Rear wheel conversion question
« Reply #15 on: June 07, 2018, 10:27:12 am »
Jim, that's the article they are questioning. I remember printing out that drawing and do not recall marking it up from .300 to .030".
97 C10,ZRX Front, Meanstreak rim

Offline Daytona_Mike

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Re: Rear wheel conversion question
« Reply #16 on: June 07, 2018, 11:47:56 am »
I do believe that I am wrong and it is .30 which  when I looked back the machinist removed 7.62mm and I did have to retap the holes deeper

Sorry , my bad
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Offline Yamahawk

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Re: Rear wheel conversion question
« Reply #17 on: June 07, 2018, 04:56:05 pm »
Jim, that's the article they are questioning. I remember printing out that drawing and do not recall marking it up from .300 to .030".
.300" sounds reasonable, I had to machine off about .25" of the Mean Streak caliper bracket to fit up inside the Concours swing arm. I didn't use the Concours caliper and bracket, I used everything off of the Mean Streak, and that gave me the larger rotor and 2 piston caliper. I really like the way it turned out, and you could measure the distance between your swing arm and the Mean Streak bearing side spacer, and then mike the caliper bracket for how much to remove from the Mean Streak bracket. But hey... I like the Easy way, and the better braking is a plus!
Charlie
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Offline connie_rider

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Re: Rear wheel conversion question
« Reply #18 on: June 07, 2018, 05:49:15 pm »
Just checked with Dennis/machinist;  He has machined several of the Meanstreak wheels.
He said; It is 8mm (.316) off the face. Same diameter. You have to machine the top of the lip after as well.

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Re: Rear wheel conversion question
« Reply #19 on: June 07, 2018, 08:41:29 pm »
Ill add my .02
I printed off the page took it to the local machine shop So whatever the page said that is what I had taken off and the concours brake paraphernalia bolted up with no problem
A big thank you to whomever figured all the tech stuff out and posted it up :great:
I have no idea about anything.
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