Stihl Rapid Super chainsaw chain for 20" bar — .325" pitch, .063" gauge, 81 drive links (2-pack)

Stihl 26RS 81-drive-link .325" pitch, .063" gauge Rapid Super chainsaw chain — two-pack replacement designed for 20" bars on compatible STIHL saws.

If you're replacing a worn chain on a STIHL MS261, MS271, or MS291 with a 20-inch bar, this genuine STIHL 26RS Rapid Super chain provides the right combination of fit and cutting geometry. Sold as a two-pack, each chain features 81 drive links, a .325" pitch, and a .063" gauge to match the factory specifications for these models when paired with a 20" guide bar. The Rapid Super series is engineered for smooth feeding and predictable cutting performance across softwood and mixed timbers when properly used and maintained.

How do I confirm this chain fits my chainsaw?

Check three key measurements on your saw and bar: pitch, gauge, and the number of drive links. These STIHL 26RS chains are .325" pitch and .063" gauge with 81 drive links, intended for a 20" bar on MS261, MS271, and MS291 models.

• Verify your saw model (MS261, MS271, MS291) and that it uses a 20" bar.
• Match pitch: chain must read .325" on the package or specification.
• Match gauge: chain thickness should be .063" to fit the bar groove.
• Ensure 81 drive links equals the count stamped or listed for your bar.

What cutting tasks is the 26RS Rapid Super chain best for?

The Rapid Super chain is versatile for general-purpose cutting: limbing, bucking, storm cleanup, and routine property work. Its tooth profile and spacing favor consistent feed and controlled chip removal, which helps maintain steady cutting action across a variety of common forestry and yard tasks.

• Efficient for softwoods and mixed species common around homes and small properties.
• Good for bucking and limbing where predictable cuts matter.
• Designed to work smoothly on 20" guide bars intended for these STIHL saws.

How should I install and maintain these replacement chains?

Install the chain following your saw’s user manual: relieve chain tension, fit onto the bar, align drive links, then set correct tension and lubricate. Regular sharpening, correct tension, and consistent bar oiling extend chain life and keep cutting performance steady.

• Fit cold: place chain on sprocket and into bar groove before tensioning.
• Tension: snug but with room to pull a link; recheck after a few cuts.
• Sharpening: maintain original angles; professional service or a match-file guide helps.
• Lubricate: use bar oil and keep the oil reservoir filled during operation.

What safety or operational notes should I keep in mind?

Always use appropriate PPE—gloves, eye protection, chaps, and hearing protection—when operating a chainsaw. A properly fitted chain reduces the chance of kickback and improves control, but safe cutting techniques and saw maintenance remain essential.

• Replace a chain if teeth are damaged, uneven, or cannot be sharpened safely.
• Inspect sprocket and bar rails—replace worn components to avoid premature chain wear.
• Follow manufacturer torque and tension specs listed in the STIHL owner’s manual.

Who is this for? This two-pack of genuine STIHL 26RS Rapid Super chains is intended for owners and service technicians of STIHL MS261, MS271, and MS291 chainsaws using a 20" guide bar who need a direct-fit replacement. It suits homeowners, arborists, and contractors seeking STIHL-branded replacement parts that match factory specifications for safe, reliable cutting when properly installed and maintained.