Overview
This chain is manufactured to OEM specs for RYOBI RY405011 / RY405011BTL saws, providing dependable cutting performance as an aftermarket alternative. Ships as a 2-piece set, giving you a ready spare. Fresh chains cut cleaner, reduce vibration, and put less stress on the saw’s drive system.
Key specifications
- Bar length: 20”
- Quantity: 2 chains per pack
Compatibility
Fits RYOBI RY405011 / RY405011BTL as a direct replacement for the factory chain. Verify your specific model number and existing chain dimensions before purchasing.
Installation notes
Turn off the chainsaw and remove its power source before servicing. Unscrew the bar cover, back off the tensioner, and pull the old chain free. Route the fresh chain around the clutch drum and into the bar groove, making sure the drive links seat properly. Tighten the tensioner until the chain snaps snugly against the underside of the bar but still slides freely, then run the saw briefly at idle to confirm smooth tracking.
Common questions
Q: Will this 2-pack 20 inch chain fit my RYOBI RY405011BTL, or is it only for the RY405011?
Yes, this chain is made to fit both the RYOBI RY405011 and RY405011BTL using a 20-inch bar. As long as your saw is one of those models with the stock 20-inch setup, these replacement chains are the correct fit.
Q: Do I need to do anything special when installing one of these chains on my RYOBI RY405011?
Make sure the cutting teeth face forward on the top side of the bar before you tension the chain. After installation, set the chain so it snaps back against the bar but can still be pulled around by hand with gloves, then recheck tension after the first few cuts since new chains can stretch slightly.
Q: How often should I sharpen or replace these 20 inch chains on the RY405011BTL?
Sharpen the chain when you notice it making fine dust instead of chips, pulling to one side, or requiring extra pressure to cut. Keep the bar groove clean and maintain proper chain oil flow, because a well-lubricated chain will last longer and cut more safely.
