As a long time Levo owner I finally had a chance to put some miles on my buddie's SL Expert Carbon yesterday. We did a 16 mile ride through one of our local riding areas. The topography was moderate, 1,246 elevation gain. I was able to keep up with my buddy on his acoustic bike, who I would NEVER be able to keep up with on my acoustic. This location is pretty tight and riding my Levo there is a bit of overkill and a bit much to handle in the tight stuff. This felt like I was riding my regular bike and I was 30 years old, instead of 61. I'm not sure it's in the budget to add an SL anytime soon, but I'm going to guess that it's going to happen at some point, perhaps next model year.