I went from Kenda 32's to Marathon Supreme 40's and really disliked it. The tires rode like wood and the height difference was very noticeable. After two rides, they were gone and I went back to 32's. Now I have just started using Clement X'Plor 35's and I really like them so far. They were great in the city and I took them on some trails and they worked like a charm. I like the volume and the versatility being able to go from street to gravel to trails which is something I couldn't and wouldn't do with the Marathon 40's. Then again maybe with the Clement 40's it would have been a different story.