I've tried to find the post where someone was commenting that the only difference in the CKs 25/30 was HP, but I couldn't remember where it was. I reviewed the website and found a lot of errors and inconsitencies that my contact there is working now to correct. If you have been to the site and looked, disregard what you saw and check back to see the updates. There was apparently some misinformation forwared to the web people as most of the items are identical for each, and some standard items were also listed as options. While they are basically the same tractor with HP differences, there are also differences in weight as the 30 has a larger engine cubic inch displacement. Kioti's web people try hard to make sure things are right and they don't mind our input when we find problems. I'll try to post as soon as the changes are uploaded. John