Today took my bike to an older French mechanic. As I posted a couple weeks ago. My chain kept falling off of the large chainring, over onto the crank. But, the more difficult problem for a long time has been the chain getting lodged between the middle and large chain ring. Causing me to have no traction. I'd have to either down shift and up shift from the small to the largest chain ring. The difficulty always occured when upshifting.
So I did not understand all things the mechanic did today. My French is limited. He attempted to tell me. My wife will go back to the shop with me and find out exactly what happend. The best he could tell me, it appeared and sounded like one chain ring was backwards? The other problem, I saw him removing some , what looked like spacers, placed adjacent the bolts.
As Valentin did his work, he kept saying 'impossib'le and oh, la la'. All I know it worked fine going home.
So my question. Should the cluster not be bolted together properly, how does a mechanic figure out, it is assembled improperly. ( I'd only know by disassembling it and reassembling it, as the manufacturer assembled it.?) In an original inspection, he said the gap was ok.
Anyone think a spacer problem was the sole problem. Can a chain ring work, if it is backwards. I did see him remove a chain ring and it appeared it was re-assembled reverse to what it was when removed. Is this possible.
Sure rides better, when climbing it has been a pain. He said i have another 500 km left before the chain needs replacing.