I have had chain suck when I mixed shimano or shimano standard rings on a sugino crank. The two companies apparently use slightly different spacing of the cranks and rings. However my problem has always been between the middle and small ring, which I could fix with a spacer that moved the middle ring out 1-2 mm. If you have mixed rings and with the problem being between the big and middle ring I don't know of any solution other than different rings or a different crank.
I would also offer that my experience has been that good 9 speed chains (I use the Conex 908) shift better and last longer than the cheap ones. Good luck, Michael who turned 68 today! On Sunday, October 14, 2012 10:11:08 PM UTC-4, Patrick Moore wrote: > > I get the occasional chainsuck on my Fargo; rarely but it happens. The > odd thing is that none of the most frequently described causes apply. > > It always happens when I am downshifting from the 46 to the 36, > usually in the middle of the cassette; and I am habituated from > decades of use to ease up when shifting. > > The chain is pretty clean; it was recently wiped and lubed with a > semi-dry lube (Raleigh, IIRC). It is worn no more than 50% per a chain > checker; the derailleurs are well adjusted; the gear teeth are as new > as are the cog teeth. The chain tension is fine. This time the chain > was newly lubed; the last time, some months ago (also downshifting > from 46 to 36 in the middle of the cassetted, I thought the chain > might be dry), > > The chain is a Sachs 9 speed, probably the cheapest available, but > certainly Sachs and 9. > > Does anyone have an idea of the cause? Is a new chain in order? > (Again, the Park says 50% of life left.) > > Patrick "I don't have this problem with my fixed gears" Moore > > -- > Vote early, vote often, vote Rhinoceros! > http://tinyurl.com/d7muj2t > > ------------------------- > Patrick Moore, Albuquerque, NM, USA > For professional resumes, contact Patrick Moore, ACRW > http://resumespecialties.com/index.html > ------------------------- > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/K5UQPevU5KEJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
