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 Post subject: Re: Rear Rotor Wanted
PostPosted: Sat Jan 18, 2014 8:40 am 
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Joined: Mon Oct 18, 2010 12:54 pm
Posts: 88
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Location: Philippines, Western Pacific
Hi Bill, there is a Marchesini Rear Disc Brake on UK Fleabay! The ebay number is:2311 3575 7343.
The item is for fairly late Ducatis, and from what I can see, is one-piece, and not floating. Buy it now
price is £35, so not TOO exhorbitant............!!!

Good luck!


Poison


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Sat Jan 18, 2014 12:58 pm 
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Joined: Fri Apr 29, 2011 5:20 pm
Posts: 90
Location: McKenzie, TN
5 hole mount versus 6 hole mount.....

.


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Sat Jan 18, 2014 7:20 pm 
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Joined: Fri Oct 15, 2010 12:20 pm
Posts: 1275
Location: Vermont, USA
Thanks guys. Going to visit Robbie and Bruce next week, and while at Robbies' I'll finally get to check to see if the 240mm blade assembly fits in the caliper and hanger assembly.
Bill


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Sun Jan 26, 2014 6:24 pm 
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Joined: Wed Sep 11, 2013 7:13 am
Posts: 268
Yesterday found the rear disc of a Aprilia AF125 (the first single-sided swingarm) which is the same diameter as the broken one I showed.
They were made from the same piece, difference is in the floating of one and the other is fixed.
You could machine the fixed rotor to accept buttons as it fits snugly around the aluminium inner part.
Thickness is +6 mm so no worries there.

ciao
ducadini

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 Post subject: Re: Rear Rotor Wanted
PostPosted: Mon Jan 27, 2014 6:56 pm 
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Joined: Fri Oct 15, 2010 12:20 pm
Posts: 1275
Location: Vermont, USA
Thank you ducadini, that's good info, and I found it on an Aprilia parts site. I think you are working harder on this than I am, and I appreciate your help. The trip to Robbie's got postponed until these damn extremely cold polar vortexes take a break and I can trial fit the 240 one. Maybe this Friday, I'll let you know.
Thanks again, Bill


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Mon Jan 27, 2014 11:02 pm 
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Joined: Thu Oct 14, 2010 11:23 am
Posts: 1802
I thought this started off at 230mm. When did it get bigger? Is this a fishing story? MikeV


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Tue Jan 28, 2014 6:43 am 
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Joined: Wed Sep 11, 2013 7:13 am
Posts: 268
Indeed it started as a 230 mm issue.
I had the same carrier but with a 240 mm disc, and later found the fixed type (which can be machined to floating).

Searched the Brembo catalogue but couldn't find anything closer to 230 mm (floating) discs.

So, digged some deeper and found a Brembo rear disc (fixed) for a Bimota (no type mentioned) 08.2656.15
As far as I can measure (on screen) it could be machined to fit the inner carrier.

Did anyone find a list with Brembo discs (with dimensions) ?

ciao
ducadini

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 Post subject: Re: Rear Rotor Wanted
PostPosted: Tue Jan 28, 2014 2:37 pm 
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Joined: Fri Oct 15, 2010 12:20 pm
Posts: 1275
Location: Vermont, USA
(let's see if I can get this post right this time)

Mike, yes you are correct. I have a 240 blade that fits the crashed carrier. I need to get over to the bike to see if that assembled 240 rotor fits into the caliper/hanger w/o modifying its o.d.

Ducadini, here's two pages from an old Slater Bros. catalog that Cranky sent me a while back. They only show smaller sizes, but he may have more pages listing larger sizes. The crashed one appears to be #08.47MQ.23. Don't know if the part numbers shown are still current. Hope this helps.

Bill


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Sat Feb 01, 2014 8:44 am 
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Joined: Fri Oct 15, 2010 12:20 pm
Posts: 1275
Location: Vermont, USA
Well, the 240 dia. blade doesn't fit. Now I guess it's time to talk to my machinist about turning it down to 230.
Bill


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 Post subject: Re: Rear Rotor Wanted
PostPosted: Wed Feb 26, 2014 7:15 pm 
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Joined: Fri Oct 15, 2010 12:20 pm
Posts: 1275
Location: Vermont, USA
Ok, it's been nipped and tucked. The 240 blade is now 230+, had my machinist stop short of an interrupted cut, and I opened the outer rain holes up to a polished 90 degree vee. The o.d. should now fit, and I'm comfortable with using it. I'd put it on my bike in a heart beat. Anybody see a problem with using this rotor?
Bill


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