When I first got my Rambler(first trike) it was ok, not great but ok. The front tires wore very quickly about 1700 miles. I took it to the dealer where in they suggested a bigger tire (Hookworm Maxxi) because I thought it was to hard to ride. After the work was complete I went for a ride, it was like riding in peanut butter. Absolutely the worst experience I have ever had on anything with wheels. I checked the alignment against factory specs it was ok, but not all that close. I increased the tire pressure to 110 which helped but it still didn't feel right. So I called the factory explained my problem. The tech suggested 1.5 Schwalbe marathons, which I purchased. Made a huge difference, but still didn't feel right. I went through the line up procedure based on Terra trike instructions and found it to be impossible to align using the dimensions they provided for the Rambler. So I remeasured the tubes and found an eighth of an inch total error. sixteenth on a side. This caused the alignment to be wider in the front than the back. (ride in mud feeling) after all this I aligned my trike based on my numbers added just under a sixteenth tow in and what do you know a new bike. Picked up an easy 4 miles an hour and run in higher gears. Has any one else had this experience?