I have a 2011 Trek FX 7.3, so I decided to order the MKS "lambda" pedals (aka Rivendell "Grip King" pedals-they designed them), received them today and put them on my bike! I posted a couple of days ago that I bought a long handled pedal wrench and some grease and it took me standing on that wrench to get my pedals loose. I just wanted to make sure I knew how to get them off in advance of actually having to swap them out when the Lambdas arrived. The pedals came off nicely (original Welgo pedals) and I put them into the boxes that the Lambda pedals came in and labeled them as my original pedals. So....that's my newby accomplishment.