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Bobbins for Brembo 320mm floaters...
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oily



Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire

PostPosted: Sun Jun 19, 2011 4:21 pm    Post subject: Reply with quote

Result Laughing
Have you got a link to the actual item Wink
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whybeeten



Joined: 11 Sep 2010
Posts: 37
Location: lincolnshire

PostPosted: Sun Jun 19, 2011 6:00 pm    Post subject: Reply with quote

Not sure how to post a link Oily but if you visit <www.motobins.co.uk> and key in the part number 20393 in their search box you will see what i'm talking about,and they are £19 a set not £20 Very Happy
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oily



Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire

PostPosted: Mon Jun 20, 2011 9:11 am    Post subject: Reply with quote

Thanks i found them.
Just ordered 2 sets at £19 a set + vat + carriage = £51 Wink
Lets hope this plan works and resurrects a very noisy set of brenbo discs.

I stripped the discs in question and could find no noticeable wear on the roters, carriers or bobbins. They are like new Shocked
The bobbins are 13.7mm and the holes are 14mm and the wave washers have set flat probably from the heat.
I think the 0.3 gap is too big and will cause premature wear on the alloy carriers.
Coupled with the wave washers not doing their job this is a recipe for worn out discs in no time at all.
I think there is still a case for having oversized bobbins made.
Any one know a good machinist with a CNC lathe?
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whybeeten



Joined: 11 Sep 2010
Posts: 37
Location: lincolnshire

PostPosted: Mon Jun 20, 2011 10:14 am    Post subject: Reply with quote

You will find the new bobbins to be marginally bigger than the old ones,but it should stop the rattle ,it did on mine, my old bobbins were like yours @13.7mm and didnt show any real wear just a polished load area.
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oily



Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire

PostPosted: Tue Jun 21, 2011 5:18 pm    Post subject: Reply with quote

Bobbin kits arrived
Good service from Moto Bins. Ordered yesterday, arrived today.
£19 + vat + carriage = £51 for two kits.



Disc before.......



Disc after.........



And the original Brembo bobbin kit.....



With the new kit fitted, what rotational play that was there had all but disappeared.
The lateral play was still excessive and as the new washers were conical washers instead of Brembo's crinkle (wave) washer it was time to put a wave into the new washers Laughing
Worked a treat. still got lateral movement if you put slight pressure on the roter but no more rattling Laughing
The Brembo disc rattling problem is mostly due to the very thin crinkle washers getting hot and loosing their crinkle Wink
After spending a few hours on the interweb thingy, I've discovered that 14mm crinkle washers are a non standard size and I cant find them anywhere.
Would I buy this kit for my other Brembo discs......
probably not as I'm convinced that oversize bobbins are required to reduce the massive clearances and premature wear and new crinkle washers would sort any rattles.
So, the hunt is on for 14mm (i.d.) crinkle washers for a bulk purchase and a machinist for oversize bobbins
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ade critten



Joined: 06 Apr 2014
Posts: 17
Location: Isle of Man

PostPosted: Thu Jul 03, 2014 5:24 pm    Post subject: New Rotors Reply with quote

If anyone is requiring a new set of 320mm rotors (rotors only not carriers) I have a pair available.
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who



Joined: 10 Nov 2010
Posts: 402
Location: Melbourne Australia

PostPosted: Tue Jul 29, 2014 12:12 am    Post subject: Re: New Rotors Reply with quote

ade critten wrote:
If anyone is requiring a new set of 320mm rotors (rotors only not carriers) I have a pair available.


How much do you want for them? Very Happy
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Basket Caser



Joined: 22 Dec 2013
Posts: 9
Location: New Zealand

PostPosted: Mon Sep 08, 2014 10:55 am    Post subject: Reply with quote

After much searching I managed to get 3 sets of 8 bobbins, washers and clips from Blackshadow UK. Inclusive of postage to New Zealand 62.97 British pound.

A major improvement as my clips and wave washers had corroded away.
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gipeto



Joined: 01 Jan 2016
Posts: 5
Location: Turin, Italy

PostPosted: Sun Jan 10, 2016 5:39 pm    Post subject: Reply with quote

Hi, I've a yb9 sr with the same problem (rattling...)do you think that the same bobbins from blackshadow would fit to my bike?It's easy to replace them?thanks
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bimotabob



Joined: 06 Jul 2013
Posts: 110
Location: New Zealand

PostPosted: Wed Jan 13, 2016 7:23 am    Post subject: Reply with quote

They have gone up a lot in the last 4 years, now 28.50 plus vat and black colour.
Bastards must have whacked up the price due to Brembo people buying them instead of lowering it for the higher turnover.

Now 2 sets sent to me in NZ will cost quite a bit more.

Whats the best deal on new rotors? (YB8 320mm type if that matters)
Are all the aftermarket one mentioned cast iron or some stainless steel as obviously the cast iron doesnt like sintered pads and they weigh and incredible amount. Something like 1.5kg per disk!!
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welshlamb



Joined: 09 Mar 2011
Posts: 592
Location: South Wales , Nr. Abergavenny

PostPosted: Mon Mar 28, 2016 7:27 pm    Post subject: Reply with quote

Quote:
Would I buy this kit for my other Brembo discs......
probably not as I'm convinced that oversize bobbins are required to reduce the massive clearances and premature wear and new crinkle washers would sort any rattles.
So, the hunt is on for 14mm (i.d.) crinkle washers for a bulk purchase and a machinist for oversize bobbins


as bought and used (effectively I think) on by DB2 resto this week.

http://www.ebay.co.uk/itm/361376011832?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
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who



Joined: 10 Nov 2010
Posts: 402
Location: Melbourne Australia

PostPosted: Tue Mar 29, 2016 6:59 am    Post subject: Re: New Rotors Reply with quote

Thanks for the link. I've ordered a few bags. Free international postage! Excellent!

I'm going to make up some stainless steel bobbins, what in the opinion of the group is the ideal bobbin OD and circlip groove spacing from the outside flange? Cheers

ade critten wrote:
If anyone is requiring a new set of 320mm rotors (rotors only not carriers) I have a pair available.


Do you still have these? I have a new set of snowflake carriers, no discs.
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who



Joined: 10 Nov 2010
Posts: 402
Location: Melbourne Australia

PostPosted: Tue Mar 29, 2016 6:59 am    Post subject: Re: New Rotors Reply with quote

Double post. Couldn't delete the other?
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