So I bought a o-ring chain with 2 new sprokets.
I installed the kit then turn the wheel with my hand.It was hard to turn and this is normal but I noticed the chain touch and groove (a litttle)the aluminum case under the front sproket.

So to avoid problems I went back to the store to return the chain and I instal non-oring chains since this time.
Anyone had this issue? thanks
Do you run orings chains on theses models?