I definitely like the trigger shifters better, I think that is one of the main problems. Also, and I know this sounds stupid, on my Trek I can see what gear I am in, they are numbered. The Felt bike has no indicators as to what you are in. I hate not knowing how many gears I have left going up a hill. Also, it has the 650 tires which I feel are so little. I know it will be a major step down if I sell the Felt and go back to the Trek line as far as quality components, etc. I am so confused. Also, being 64 years old, has to have something to do with this.