'Silent' sprockets

[Gassoon]

Just saw these from M&P http://www.mandp.co.uk/index.php/default/motorcycle-spares/spares/belts-chains-sprockets/ognibene-sprockets.html

I know a lot of owners like to replace like-with-like, as the 650's are equipped with similar noise-reducing fron sprockets from the factory. These italian jobs even do a rear sprocket! Anyone any experience of them?

[imindoors]

There's a coincidence. I fitted a front and rear this weekend. Both have dampers. I also fitted a DID X ring chain as well. I have only done about 100 miles since so too early to tell.

First impressions are that they are definitely quieter and smoother than those I replaced. However the existing chain  was proper shagged so it was quite noisy anyway.

I can say that they look well built, with a good chunky width to the teeth and fit was perfect.

The rear sprocket damper may clash with an oiler if you have one fitted.

[plumber02]

no experience myself I'd stick with tried n tested oem or for me JT can't be beat- the italians aren't that good when it comes to steel remember 1980's lancia's, but I am wondering how does a ring of rubber reduce noise? does it just cushion the chain as it sits on the gear , does the ring wear out ???

[grumps]

If I read it right the rubber is a sort of isolator and soaks up resonances in the sprocket. Sort of like the cush drive does at the rear

[plumber02]

cush drive is a direct drive rubber to steel different thing altogether , sorry gassoon for completely going off subject its just this concept is new to me, I'm around motors gears cogs shafts and chains a long time and the only way I can see it working is that it cushions the mesh of the chain plates to the gear 

[Gassoon]

Heh heh! healthy cynicism is a good thing!  I put an aftermarket ('non-silent') sprocket on mine when I went down a tooth and didn't notice a damn difference from stock...since then I wondered if it was my slight hearing loss from years of not wearing earplugs to blame, though

The way I read it the rubber makes contact, so must lift the chain ever so slightly...so the rubber must wear out, anyway though I know what you are saying grumps - the cush drives' main purpose is to interface the drive, but secondary I always thought was to smooth things oot, including resonance. However, I am now thinking that I have supposed much of this, without really researching it!

[tallpaul]

I've gone for a non-damped sprocket on my bike and all I've noticed is a slight increase in the money in my pocket. I understand how the damper works, just not fathomed out why it needs it.

[Gassoon]

 

[plumber02]

this man said he's noticed a huge difference,



Is it a 1000 or an old oil cooled 1100

[tallpaul]

[SteveH44]

decent pair of ear plugs..... sorted.