If the chain is in the middle or slightly off center in the front derailleur and you start to peddle hard the chain rubs on the front derailleur.
If you stand up on the bike you can feel it flex also.
It is now bent
Shimano and several mechanics said not to use a 9 speed crank on an 8 speed chain.
I was planning to purchase the Shimano LX and a new Octalink BB and the Shimano factory tech said that it was dangerous (9-crank w/8-chain) and that they not only did not recommend it but said do not do that.


Actually I would like to get a few opinions on using the 9 speed crank with the 8 speed chain???

thanks to all of you for your advice and help.
I greatly appreciate this assistance