Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > General Motorcycles only > X-ring vs O-ring chains

[Loz]

Would someone mind briefly describing the differences (practical or otherwise) between these two chain types, or pointing me to an suitable article?

Many thanks.

[Rushjob]

The x or o is the cross section of the seal... an o ring will seal at one point on each side of the seal >0< ... and the X seals in 2 places >X< on each side so supposedly creates a more effective seal keeping the links lubricated for longer...
Is that what you were getting at????

[Loz]

Rushjob
Thanks for the explanation.
The reason for asking is that I've ordered an O-ring chain for my 750ie Sport and was wondering whether I shouldn't have ordered an X-ring instead.
Is there a preferred type for Ducatis in general, or for different types of Ducatis? I've ordered a Tsubaki as these have been recommended here on the Message Board.

Cheers.

[Rushjob]

I've got the Tsubaki x ring on mine ( ST4S )...... superb and very strong so very little adjustment needed.

[Loz]

That's something I don't understand ...
My 999's chain rarely needs adjustment and I've only had two in total after 18k plus miles.
My 750ie, with half the horsepower, eats chains and requires regular adjustment, I think it's had five in 22k plus miles.
Presumably the T9 uses a stronger, heavier chain as standard. I was wondering how to get more miles per chain on the 750.

[phil_h]

Fast chain wear can be caused by :
- worn sprocket(s) as they stretch the rollers apart, causing the chain to heat up and pump the grease out, and force metal-to-metal contact
- wheel out of line with the front sprocket causing the chain to s-bend as it reaches the sprocket, causing it to heat up and pump grease out, and force metal-to-metal contact