Whats this all about????

custard749 · 05-May-2011, 22:58

I have a tight spot on my chain, tight 15mm play, the slack part I can almost push 2 inches of link onto the under side of the swing arm (794s Black swing arm), I have a gold X ring renthal chain which is new (only about 500 miles)
I have put a mark on the chain at the tight point, I then do one rotation and the same mark is now the slack part. I then do another rotation and it becomes the tight point again. The wheel is in straight, the sprockets are also brand new. what is wrong here?
help please

dunlop0_1 · 06-May-2011, 05:37

Is it the right chain for those sprockets? eg 520 chain on 525 sprockets.

Chaz · 06-May-2011, 09:24

Are you checking the chain with the bike on a paddock stand or just moving the bike which will put chain under tension, also is the wheel spinning free?

PDL · 06-May-2011, 09:41

Sounds like the spockets aren't matched centrally possibly the front

Chaz · 06-May-2011, 10:32

Could be the front sprocket on the wrong way round.

custard749 · 06-May-2011, 12:50

Thanks for your coments, the chain and sprockets were fitted by Ducati only 2 months ago, done on a paddock stand, wheel turns freely.
But just found the problem, the brand new Renthal rear sprocket was elliptical my 1mm, how this happened I dont know

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06-May-2011, 05:37	#2
dunlop0_1 Registered Forum User Big Twin Posts: 1,568 Join Date: May 2009 Is it the right chain for those sprockets? eg 520 chain on 525 sprockets. Reply

06-May-2011, 09:24	#3
Chaz Registered Forum User Ducati Corse Bikes: 916 Strada Posts: 3,844 Join Date: Jul 2003 Location: At some track or another:) Mood: www.od2racing.co.uk Are you checking the chain with the bike on a paddock stand or just moving the bike which will put chain under tension, also is the wheel spinning free? Reply

06-May-2011, 09:41	#4
PDL Registered Forum User 500SD Bikes: 803 rs race bike Posts: 592 Join Date: Jul 2004 Location: Cheshire Sounds like the spockets aren't matched centrally possibly the front Reply

06-May-2011, 10:32	#5
Chaz Registered Forum User Ducati Corse Bikes: 916 Strada Posts: 3,844 Join Date: Jul 2003 Location: At some track or another:) Mood: www.od2racing.co.uk Could be the front sprocket on the wrong way round. Reply

06-May-2011, 12:50	#6
custard749 Registered Forum User Montjuic Posts: 51 Join Date: Oct 2010 chain Thanks for your coments, the chain and sprockets were fitted by Ducati only 2 months ago, done on a paddock stand, wheel turns freely. But just found the problem, the brand new Renthal rear sprocket was elliptical my 1mm, how this happened I dont know Reply