SIP and BGM Clutches

[Lamaddict]

I had loads of bother with a SIP clutch, it caused a terrible racket, couldn't put it in neutral and finally it would work. I changed it for a standard clutch and solved the problem. A friend has also had bother fitting a BGM clutch, grinding bit of the clutch cover etc. They say, 'plug and play,', I don't think so. What's the best way to fit these damn clutches?

[gaz_powell]

don't fit them - stick with genuine piaggio

ive ran a genuine cosa type for years - no issues with fitting, set up and has been bullet proof in a tuned p2

[ArmandTanzarian]

My experience was the opposite. Had two standard Cosa clutches which were a total nightmare while the SIP one is as light as a feather and is lovely.

[OzOAP]

I always use early 7 spring type. Not for the limp wristed but never let me down.

[ArmandTanzarian]

I always use early 7 spring type. Not for the limp wristed but never let me down.

I tried one of those too. It was so stiff that apart from being horrible to use, it crushed the brass plunger and it split in two.

[bazman]

Same as Gaz , cosa in a tuned polini 210, no problems had one in my mallossi for years also.
I know they can be a bit hit and miss especially with clearance issues in the basket, but all easy to sort when on the bench.
I run BGM springs and normal newfren plates , all good.

[gaz_powell]

I used the 7 spring old type for years then switched to the genuine piaggio cosa type.

I must stress it was a genuine product back in the day when there were no issues with turret heights etc but I rebuilt a 7 spring one not so long ago for a L reg T5 (172) classic and that's proved to be very good.

like everything I think piaggio standards did (still ??) slip !

[Muttley McLadd]

I tried one of those too. It was so stiff that apart from being horrible to use, it crushed the brass plunger and it split in two.

I've had this with a SIP Cosa one too. It also wrecked one of the SIP plungers with the bearings on. Currently running a PKXL one, which has been fine for a while now.

[smiffy1968]

As Oz said, i run old 7 spring type. Banded with beast strong springs. Works your fingers in town but solid and works perfectly.

[GLscoot]

Im using the sip banded with there pressure plate and can't complain. Had too many Cosa 2 clutches explode and cause severe damage so for me there a no, no.

I know some need a spacer, which I avoided didn't see the point in having another place for a possible air leak or the chance of the rear wheel rubbing against the clutch cover.