Sprockets not the same on HP4 - Page 2 - BMW S1000RR Forums: BMW Sportbike Forum
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post #11 of 57 (permalink) Old 12-25-2012, 01:23 PM
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Your right. It's a M12x1.5mm.
It's was 2am.
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It's all thread pitch, 1.25 means there is a thread every 1.25mm and 1.5 means there is a thread every 1.5 mm. It has nothing to do with the hole. Also the 10.9 you see stamped on the stud end indicates the grade of the fastener.
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post #12 of 57 (permalink) Old 12-25-2012, 01:45 PM
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What were you doing up at 2 am? ARE YOU SANTA?

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post #13 of 57 (permalink) Old 12-25-2012, 03:07 PM
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No not Santa, but I was working on my naughty list.
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post #14 of 57 (permalink) Old 12-26-2012, 05:45 AM
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The OEM wheels on HP4 are PVM not Marchesini.
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post #15 of 57 (permalink) Old 12-26-2012, 11:25 AM
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The OEM wheels on HP4 are PVM not Marchesini.
I've heard that before, but I don't see a PVM 7 spoke on the market in this desgn, I see a Marchesini 7 spoke; although it is slightly different then the HP4s. I do see what looks like a germany stamp on my HP4's wheel which would probably suggest PVM. Any real proof of them being PVM?

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post #16 of 57 (permalink) Old 12-27-2012, 09:00 AM
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Quote:
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I've heard that before, but I don't see a PVM 7 spoke on the market in this desgn, I see a Marchesini 7 spoke; although it is slightly different then the HP4s. I do see what looks like a germany stamp on my HP4's wheel which would probably suggest PVM. Any real proof of them being PVM?


http://www.harris-performance.com/ac...o_PVM_BMW.html
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post #17 of 57 (permalink) Old 12-27-2012, 10:00 AM Thread Starter
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Thing is, even the PVM sprockets use a 10mm bolt. The bolt pattern is the same as the Marchesini/BST. The center hole is a different diameter (just looking at specs) though. So we're still stuck with stock until someone creates something new, as far as I can tell.

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post #18 of 57 (permalink) Old 12-27-2012, 11:15 AM
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I see em, but there are only 6 spokes not 7.

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post #19 of 57 (permalink) Old 02-03-2013, 01:14 PM
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Did we ever figure this out?? I need a 520 rear sprocket for my HP4!
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post #20 of 57 (permalink) Old 02-03-2013, 01:43 PM
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The stock wheels on my 2010 have a rear sprocket designed for these wheels, when I switched to OZ wheels it required the use of a sprocket to use on these wheels, it came from Driven since the mounting points use a different configuration. I also switched wheels on my 03 Ducati 999R from stock Marchisini, to mag Marchisini's, these too required changing the sprocket carrier, even tho they are made by the same company. Just the way it is. Fran
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