Stihl MS 170 vs Stihl MS 180 C-BE

Stihl / Gas

Stihl MS 170

30cc class

~$220

4.5/5 Ace Hardware

Stihl / Gas

30cc class

~$320

4.5/5 Ace Hardware

The Stihl MS 170 costs about $100 less; the Stihl MS 180 C-BE has more engine (31.8cc); the Stihl MS 170 is lighter at 8.6 lb on the same basis.

Spec	Stihl MS 170	Stihl MS 180 C-BE
Approx. price	~$220with 16" bar and chain	~$320with 16" bar and chain
Engine class	30cc classby displacement	30cc classby displacement
Power type	Gas	Gas
Use case	Homeowner	Homeowner
Engine	30.1 cc	31.8 cc
Rated power	1.3 kW	1.5 kW
Bar length	16 in	16 in
Single-pass cut	about 14 in	about 14 in
Bar range	12-16 in	12-16 in
Chain	3/8" Picco pitch / .043" gauge (61 PMM3)	3/8" Picco pitch / .043" gauge (61 PMM3)
Weight	8.6 lbpowerhead only	9.3 lbpowerhead only
Warranty	2-year consumer (1-year commercial)	2-year consumer (1-year commercial)

Tinted cells mark the better figure on that row alone: more engine, longer bar, lighter, cheaper. A lighter weight is only a win on the same basis.

Real Stihl build and dealer network at a $219.99 price that undercuts most big-box homeowner saws
8.6 lb powerhead is light enough for overhead limbing and long cleanup sessions without fatigue
3/8" Picco low-profile chain is cheap to replace and easy to sharpen for beginners
IntelliCarb compensating carburetor keeps it running as the air filter dirties
Massive verified track record — 4.5 stars over 4,401 Ace Hardware reviews
Sips fuel; a tank goes a long way in yard-duty use

Underpowered for firewood — owners report it bogs and slogs in logs over ~12 inches
No side-access chain tensioner; adjusting the chain means loosening bar nuts the old way
Anti-vibration system is minimal compared to the MS 250 and up, so hands buzz on longer cuts
Clamshell engine and plastic-heavy construction aren't built for rebuilds or hard hours
Newer MS 172 successor is already on stihlusa.com, so the 170's days look numbered

Easy2Start spring-assist recoil fires with a slow, light pull — the standout feature owners buy it for
Tool-free Quick Chain Adjuster wheel means no scrench needed for tensioning in the field
9.3 lb powerhead stays nimble for limbing and storm cleanup
31.8cc / 1.5 kW engine has noticeably more pull than the MS 170 in the same size class
4.5 stars across 1,332 Ace Hardware reviews
Automatic Ematic oiler keeps the 3/8" Picco chain cheap and low-maintenance

Chain-stretch complaints are common in the first hours — owners report chains loosening or derailing until broken in
Old-school users dislike the EZ tensioner wheel and wish for standard bar nuts
Still a small saw: bogs in hardwood much beyond a 14-inch cut
About $100 premium over the MS 170 for convenience features, not power
Clamshell engine design isn't meant for rebuilding when it eventually wears out