Honda CR80 clutch disk page, what have you got?
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Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 6950
Location: Victoria, Australia
Mon Mar 05, 2018 1:40 pm quote
Demetrios, do you have a link to the spacer?


October - I didn't use the T tab plate, just the Honda plate with the stuff ground off. But as I said this is a CNC'd basket so probably doesn't flex as much as the pressed ones.

a20180305_174921.jpg

Hooked
PX 150
Joined: 15 Sep 2006
Posts: 475
Location: Gold Coast, Australia
Mon Mar 05, 2018 1:42 pm quote
Demitrios. That's the whole idea of the BGM modified plates.

They fit like standard clutch plates according to your specific clutch basket.

Fit and forget
Addicted
64 allstate, 66 sprint, 74 primavera, 79 P125x
Joined: 10 Mar 2013
Posts: 788
Location: Maine
Mon Mar 05, 2018 6:43 pm quote
Thanks Ginch...

You always hear people saying you need a banded clutch etc...

So of course I get worried.
But the last time I redid my clutch, it was pretty beat, and I had to replace the basket because it was spread... I almost think if it didn't have those T tabs it might have been able to release the clip

But that could be me being paranoid
Member
PX200
Joined: 05 Apr 2017
Posts: 23
Location: greece
Mon Mar 05, 2018 8:21 pm quote
http://www.scooter-center.com/en/product/BGM8040CRSB/Spacer+for+clutch+plates+BGM+PRO+Vespa+type+Cosa2+PX+1995+CR+10mm+optional+needed+mounting+position+below+circlip?meta=?cat=C_V_ZAPM18&catmatch=CAT_ANTRIEB_KUPPLUNGSBELAG
This is the link.i have an issue with these plates.i use them on a sip cosa sport banded clutch basket,and need a bit more modifiyng compare to other baskets.anyways thats not the issue!the link says that the spacer is 1mm,and we measured the plates and is 1mm thinner compare to the piaggio ones,metal plates included.when i kickstart after a long period of sitting ,the clutch drags,i unscrew a bit the cable adjuster and it starts ok..but on the street it kicks when you release the clutch lever and its not so smooth.so it needs tightenning again!maybe this spacer would solve this problem?anyone used it?
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 6950
Location: Victoria, Australia
Mon Mar 05, 2018 9:54 pm quote
Interesting... the spacer actually reduces the height of the basket? It must also compress the springs slightly more as well. I'd never seen that.
Lurker
Vespa P200
Joined: 05 Apr 2018
Posts: 1
Location: Johannesburg
Sat May 12, 2018 2:32 am quote
Springs on 7 spring clutch?
Hi All,
Very glad to have found this amazing post. So my two questions. .....

1. For those of you that have fitted the CR80 clutch rings to a 7 spring clutch, did fit springs that are 50% stiffer as mentioned by freakmoped? or did you run the standard springs?

2. What do you think the max bhp one will be good for using the standard 7 springs? And max bhp with the 50% stiffer springs? Any ideas?
Veni, Vidi, Posti
74 50s x2 78 P200 84 Cosa 58 AllState 68 Sprint 80 50special + projects
Joined: 22 Nov 2010
Posts: 6996
Location: seattle/athens
Sat May 12, 2018 9:39 am quote
I just used the old stock springs, but on a completely stock P200 motor. I don't know about max HP but reading back in the thread should give you some idea. One thing to note: I found the clutch doesn't lock up as quickly as stock, it slips more for me when starting out. But that's OK, it's easier to ride and doesn't slip at all once it does lock up. This is with only two CR80 corks and the stock T-slotted top plate.
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 6950
Location: Victoria, Australia
Sun May 13, 2018 2:51 am quote
I just used the stock springs. No idea what the plates will handle sorry.
Molto Verboso
One or two fun scoots....nothing too precious
Joined: 17 Jul 2013
Posts: 1110
Location: UK (South East)
Sun Jul 21, 2019 7:38 am quote
Anyone using the CR80 plates in a SIP Sport clutch or a banded stock Cosa clutch? The SIP Sport basket is not CNC'd but it does have a band welded on and it can accommodate up to 16 springs.

I have the BGM plates that are good for a stock Cosa clutch, so the tabs are the correct width. However they stick out too much to fit within the band. Looks I will need to grind them back. Has anyone done this successfully? I've only seen references to grinding the width of the tabs.
Hooked
PX 150
Joined: 15 Sep 2006
Posts: 475
Location: Gold Coast, Australia
Sun Jul 21, 2019 1:19 pm quote
The Sip style Cr80 plates will work in a banded basket, they don't protrude as far out of the basket as the BGM style
Molto Verboso
1979 P150X, 1983 P200E, 1987 T5, 1996 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 1526
Location: Veria, Greece
Sun Jul 21, 2019 1:51 pm quote
I just grind them. Iíve done many on banded baskets. They work just fine. Just 12Ä for a Honda set. All my friends are happy with the CR plates...

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3A444089-BA42-485D-8485-460F94F0DC81.jpeg

Hooked
PX 150
Joined: 15 Sep 2006
Posts: 475
Location: Gold Coast, Australia
Sun Jul 21, 2019 9:38 pm quote
I like that you get the advantage of the thicker cr80 style tabs, better clutch linings and the full standard style friction area, they come supplied with steels as well..
You can leave the grinder in the cupboard

20190510_113033.jpg

Veni, Vidi, Posti
74 50s x2 78 P200 84 Cosa 58 AllState 68 Sprint 80 50special + projects
Joined: 22 Nov 2010
Posts: 6996
Location: seattle/athens
Sun Jul 21, 2019 10:05 pm quote
I like that SIP be copyin' Honda, that looks like nice gear.

Chris, this looks like a nice improvement over stock. Is this one DIY?
Molto Verboso
1979 P150X, 1983 P200E, 1987 T5, 1996 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 1526
Location: Veria, Greece
Sun Jul 21, 2019 10:47 pm quote
Yes itís DIY. It was a brand new P/A Cosa clutch and I added the SIP ring and the plates. For some strange reason, the basket was thicker than the stock ones...
Molto Verboso
One or two fun scoots....nothing too precious
Joined: 17 Jul 2013
Posts: 1110
Location: UK (South East)
Sun Jul 21, 2019 11:09 pm quote
Thanks all. I already have the SIP Sport clutch and all it's internals, so I'll grind the BGM CR80 plates to suit. I just didn't want to compromise the performance by shortening the tabs.

Next time I might buy the SIP plates, although the price of the Honda plates is very good compared to what SIP and SCK are charging.
Molto Verboso
PX221 Malossi, O tuned PX200 and some motorbikes
Joined: 14 Jun 2017
Posts: 1363
Location: London UK
Mon Jul 22, 2019 1:39 am quote
Starting to find the limit with these CR80 plates. My 221 clutch has started slipping. Running on 10 XXL springs. Still ok to ride for now but if I open up to much it slips.
These plates were new earlier this year. Maybe 1500 miles. I am hoping this is why SIP made their own version of the CR80 plates and these last a while longer.
Molto Verboso
One or two fun scoots....nothing too precious
Joined: 17 Jul 2013
Posts: 1110
Location: UK (South East)
Tue Jul 30, 2019 2:29 am quote
Just rebuilt my SIP Sport clutch with the SIP CR80 plates. They are a perfect fit into the banded basket. No grinding required and they have the same friction material surface area as a regular set of Piaggio cork plates, with of course the thicker and wider aluminum tabs. I've installed with 8 * L springs and 4 * original Piaggio springs. All springs are new.

Let's see how well it copes with an MHR221 motor with [hopefully] 30hp !!

clutch.jpg

Hooked
Jet 200, P200E (x2), T5
Joined: 27 Jan 2013
Posts: 319
Location: Paris, France & L.A., Cal, USA
Sun Aug 11, 2019 2:59 pm quote
SaFiS wrote:
Yes itís DIY. It was a brand new P/A Cosa clutch and I added the SIP ring and the plates. For some strange reason, the basket was thicker than the stock ones...
Anyone else have issues fitting SIP rings to cosa baskets? I bought 2; neither fits any of my cosa (Piaggio, taken off actual cosas) baskets, both slide right onto any of my 7 spring baskets. The people I spoke to at sip seemed surprised at first, then told me cosa baskets were 1mm wider than older 7-spring units and hence needed rings to be installed "with violence" (sic). No word on whether they'd pay for damaged baskets if violent methods proved destructive.
I'm planning on cutting a ring to allow it to slide on a cosa basket without deforming it, but it seems like unnecessary added work for something that's supposed to fit from the get-go.
Molto Verboso
1979 P150X, 1983 P200E, 1987 T5, 1996 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 1526
Location: Veria, Greece
Sun Aug 11, 2019 6:11 pm quote
Yeah, they donít fit as they are. I grind them a bit. Donít use ďviolenceĒ as they said (how stupid are they??). Youíll just end up with a deformed basket...
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 6950
Location: Victoria, Australia
Sun Aug 11, 2019 6:35 pm quote
It's a scooter part. Of course it doesn't fit!!
Hooked
Jet 200, P200E (x2), T5
Joined: 27 Jan 2013
Posts: 319
Location: Paris, France & L.A., Cal, USA
Sun Aug 11, 2019 11:21 pm quote
I finally opted for a different solution

IMG_3609.JPG

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