34cc of screamin' power. This has some very interesting features. Instead of bar studs it has a bolt that passes through the chain break and bar then into the body of the saw. It also routes the exhaust through the clutch cover which appears to be a heat sink with cooling fines. Overall it is very similar to the Stihl 015. I haven't had a chance to run it in wood yet. It might be a nice little limbing saw