Stihl 26RS 81 Rapid Super Chainsaw Chain 20" .325 Pitch .063 Gauge — 81-Drive OEM Replacement

The STIHL 26RS 81 Rapid Super is a genuine professional-grade 20" chainsaw chain with .325" pitch and .063" gauge engineered for fast, clean cutting on compatible STIHL saws.

This replacement chain is designed specifically for select STIHL saws and delivers the cutting geometry, durability, and fitment you expect from OEM STIHL components. It’s a full-size 20" chain with 81 drive links (drivers) in the Rapid Super profile, built to match factory tolerances so it installs and tensions correctly on the listed bars. Before purchasing, confirm your saw model and bar length to ensure compatibility.

Which STIHL models and bar sizes accept this chain?

This chain fits a defined group of STIHL saws that use a 20" bar with .325" pitch and .063" gauge. It is intended for models that require 81 drive links; using the correct driver count prevents improper engagement and uneven wear.

• Compatible models include: 024, 026, 028, 034, 036, MS241, MS260, MS261, MS270, MS271, MS290, MS291.
• Requires a 20" bar length — verify your bar stamp or owner’s manual.
• Designed for bars and saws specified for .325" pitch and .063" gauge chains.

How does the .325" pitch and .063" gauge affect performance?

The .325" pitch balances bite and smoothness, providing aggressive cut rates without the increased vibration of larger pitches. The .063" gauge (thickness of the drive links) matches many professional STIHL bars and sprockets, ensuring stable tracking and even wear across the drive train.

• .325" pitch: good chip removal and fast feed through wood.
• .063" gauge: proper fit for medium-duty professional bars and reduced chain wobble.
• 81 drivers: correct engagement with the bar groove and sprocket for consistent cutting.

What are the installation and maintenance considerations?

Installation is straightforward when you have the correct bar length and driver count: mount the chain with the cutters facing forward on the top of the bar, set initial tension, and check sprocket fit. Regular maintenance—sharpening, correct tensioning, and lubrication—keeps cutting performance predictable and extends chain life.

• Always shut off engine and wear protective gloves when changing chains.
• Initial tension: snug on the bar but allow slight lift when pulled by hand; re-tension after short use.
• Sharpen cutters and check depth gauges per STIHL guidelines to maintain efficiency.

Who is this chain for? If you own one of the listed STIHL models and use a 20" bar, this genuine STIHL 26RS 81 Rapid Super chain is for professionals and experienced homeowners who demand factory-fit replacement parts. It suits users who need reliable, repeatable cutting for pruning, felling medium-sized trees, or general property maintenance. Choose this chain when you prefer OEM spec components for compatibility, safety, and predictable performance on STIHL equipment.