Description
- Small 7 Spline
- Pitch: .325
- Sprocket Tooth Count: 7
- Fits Stihl 017, 018, 018C, 019T, 021, 025, MS170, MS171, MS180, MS181, MS190T, MS191T, MS210, MS211 and MS230
- A two-piece design includes a drum with a replaceable rim, allowing the rim to be replaced multiple times before the entire unit is replaced
- Replacement schedule is every 3 rims