My girlfriend has been riding a crf150f and loves the thing but as many have already said its HEAVY and to heavy for her to pick up by herself on the race track unless shes on flat ground. So obviously the upgrade is the crf150r right? I picked up a used one that needed some TLC fixed it up and took her to the track to play with the new toy but she hates the feel of it compared to the 150f not the engine power just the cockpit.. So i took some measurements and the 150f peg to seat height is about 20 inches while the 150r is only 18 1/2 my question is .. does the big wheel or expert version have the same peg to seat height? were considering selling and getting the expert because I think it would be more like the 150f the local dealer doesnt have one in stock for me to go measure and I havnt found anything on line and one more thing do you guys think the bigger wheels make a huge difference in riding? or should i just fix the cockpit problem and keep the small wheels?