Ryobi RAC821-35cm Aerator Roller for AC/DC Scarifier

Very useful add on , it’s extra cost but worth it

Works fine with my Ryobi scarifier. Although, not a massive difference from the attachment that came with the machine.

Got this at the same time as the Ryobi RY18SFX35A-0 battery scarifier and used it after the main scarifier roller. It can be quite abrasive so use on maximum height, only move in a forward direction and preferably pick a dry day. Flicks all sorts of small twigs, grit and finer thatch off surface as well as puncturing ground with oxygen feeding holes for grass roots.I would recommend using in combo with the Ryobi RAC822 debris catcher basket - shouldn't fill too quickly if you've scarified first with original blade reel. Easy to fit, just remove two allen screws, pull out scarifier reel and swap for aerator - takes seconds. On a lower height setting it can be used to till bare ground for re-seeding. Worked for me anyway!

Great as a light scarifier attachment/power rake. Won’t punch aeration holes in the lawn and I knew that before I purchased, and didn’t buy it for that reason. This works great at giving your lawn a light dethatching and scraping up dead matter to let your lawn breathe.

Exactly as described. Fast delivery to Australia. Easy to install / swap for scarifier roller. Very happy with purchase

I bought this to use it in the Ryobi 18v battery scarifier and it works fine, but I'm not sure it actually does anything different to the roller/cylinder which comes supplied as standard with the machine. I'd wait before buying and see what you think of the unit with the stock wheel before buying this one. Don't rush into getting it. Also, I've said this in other reviews but will mention here too, the collection box for the scarifier is useless, it clogs immediately and collects nothing, so don't bother with that either. Just use the scarifier without a collection box and then 'hoover' up the debris after with your mower on a high setting.

I don’t know if I got lucky and got a defective piece but mine fit inside the machine but you couldn’t actually fit the closing plastic bracket on. I tried to put it on and realised the radius of the rod was a few mm too large and it wouldn’t let the closing bracket be bolted on. I had to return it. Thank god for Amazon for their return process but what a letdown, as the machine itself is amazing.

This isn’t an aerator. Don’t buy it if you want to put holes into your lawn to aerate. It doesn’t do that, despite the misleading name. It is, however, a good dethatcher and on the mower’s deeper settings will score loose substrate which might be useful if overseeding. I found it slightly more effective at dethatching than the fitted scarifier (hard bladed) cartridge and a bit more gentle on the substrate. But I probably wouldn’t buy it again in addition to the fitted cartridge. And I’d probably skip the debris collector too. Latter probably fine if you’re just doing a light dethatch but mine filled up so wuickly I ended up ditching it.