TonyM
ArboristSite Guru
Yes, the 111. My mistake. The 109 and 110 are both 43cc. The 111, 115 and 520 were all 52cc, but the 115 rated at 3.7Hp and the others at 3.3Hp. The 540 is 54cc, but only rated at 3.0 Hp. The 115 is one heck of a saw IMHO. I really like using mine, and believe it to be the best power to weight ratio ever in a 50cc class saw.