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fmcd92
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Post subject: Rear Rotor Posted: Wed Feb 03, 2016 5:40 pm |
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Joined: Sat Oct 02, 2010 12:22 pm Posts: 128
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Others must know of some tasty options for fitment of an effective but diminutive rear rotor to a 5.5 Marvic equipped TT750 with Verlicchi alloy swingarm I hope? The Marvic is a 3-spoke type with the usual 80mm pilot and about 102mm x M8 (6x) bolt circle. Looks like I may need a rotor with at least 17mm or more offset but I can deal with offset variances of course. Hoping for something 245mm to 260 max. Don't terribly need a floater but do want a rear rotor I actually can use as needs be. This is a track bike.
Also hope to discover where I can find the rear master cyl. pivot actuator lever thingie hinged in the bottom of the original TT type pumps.
All the best and thank you for any leads,
Francis McDermott
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ducttf1
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Post subject: Re: Rear Rotor Posted: Thu Feb 04, 2016 5:35 pm |
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Joined: Sun Aug 08, 2010 8:03 pm Posts: 1151 Images: 0
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fmcd92
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Post subject: Re: Rear Rotor Posted: Thu Feb 04, 2016 7:15 pm |
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Joined: Sat Oct 02, 2010 12:22 pm Posts: 128
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Lou!
Perfect. I can do that and it looks like fun. My eyesight isn't near what it was so these jobs are more of a strain these days but as you say, critical accuracy isn't much part of this particular bit.
I will check rear rotor offset by doing a mockup, 180 rear rubber as you know.
Big thanks my friend!
Fran
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618F1
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Post subject: Re: Rear Rotor Posted: Thu Feb 04, 2016 10:15 pm |
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Joined: Thu Oct 14, 2010 11:23 am Posts: 1809
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I say buy one of the correct 260mm rear rotors from Carlo. You will have it installed a week from now! Then you can spend the time on the master cylinder thingie. MikeV
Not much help, really. MV
Last edited by 618F1 on Sat Feb 06, 2016 4:00 pm, edited 1 time in total.
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fmcd92
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Post subject: Re: Rear Rotor Posted: Sat Feb 06, 2016 11:28 am |
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Joined: Sat Oct 02, 2010 12:22 pm Posts: 128
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I need to fix my topic-reply notification, I appreciate all ideas but am sometimes slow to acknowledge them. 260 mm would be fine for the rear rotor.
fmcd
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fmcd92
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Post subject: Re: Rear Rotor Posted: Sat Feb 06, 2016 2:01 pm |
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Joined: Sat Oct 02, 2010 12:22 pm Posts: 128
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If this thread still has legs can I ask for any suggestions for lighter-weight rear axle and disco freno posteriore assemblies to fit Verlicchi swingarms? Yes, we can make one-off Ti. axles but if you've ever gun-drilled 320mm of Titanium in your home workshop you can understand why alternatives appeal.
Cheers!
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Eldert
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Post subject: Re: Rear Rotor Posted: Sun Feb 07, 2016 11:23 am |
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Joined: Sun Oct 17, 2010 3:25 am Posts: 54 Location: Netherlands
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Hi Fran
are you looking for a hollow 17 mm axle and 320 mm long ?
Yamaha XT600 type 3TB has one at the rear . weight is about 420 grams
Eldert
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fmcd92
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Post subject: Re: Rear Rotor Posted: Mon Feb 08, 2016 8:03 pm |
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Joined: Sat Oct 02, 2010 12:22 pm Posts: 128
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Eldert that sounds excellent, now I have to find one. These were only in Canada 1993 one year.
Thank you!
Francis
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618F1
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Post subject: Re: Rear Rotor Posted: Mon Feb 08, 2016 10:53 pm |
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Joined: Thu Oct 14, 2010 11:23 am Posts: 1809
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Is 320mm long enough? Only 12.8 inches. I think you need about 13.5 more or less. MIkeV
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fmcd92
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Post subject: Re: Rear Rotor Posted: Tue Feb 09, 2016 1:26 pm |
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Joined: Sat Oct 02, 2010 12:22 pm Posts: 128
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Hey Mike,
Not certain about other fit requirements but the Pantah 650 solid axle protrudes 20+ mm or thereabouts depending on the washers stacked over those Verlicchi swingarms side plates. For me the XT 600 axle should work. Up here XT 600 is a snowmobile model so yet another challenge. I would like to reduce rearward overall weight and instead send it forwards by doing so. Modern track slicks have such grip that weight bias is important right along with all the other imperatives we wish we could keep in some meaningful perspective.
I read somewhere that one good track session is worth 10,000 internet posts on the subject.
Cheers! fmcd
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