Review on SHIMANO Claris R2030 8Spd Triple Front Derailleur Adapter: 34.9mm, Compatible with 31.8/28.6 Frames by Brett Bush

I installed the derailleur and everything worked from day one. Then for some reason it started slipping off the frame, very slightly at first when I shifted to the big chainring and soon it started rubbing against the chainring. I could understand. I installed everything correctly, but now there is a problem. I took it to the shop and the mechanic pointed out that the spacers securing the derailleur to the frame were the wrong size(!). Discouraged, I went home with visions of new switches dancing in my head. One would think that this is not such a bad vision, but now these visions are associated with disappointment. turn on my commuter bike.