I have ridden both ( a friend who passed away had a 1300C, and I used to ride it on occasion for the widow, to keep it from just sitting before it sold). The 1300 is lighter and more maneuverable, the 1800 is top heavy, but you can get used to that. Bpoth ar eplenty powerful, and the per reports from friends, the 1300 is easier for the novice wrencher.