Brinly SA2-40BH-P Tow Behind Spike Aerator with Double Tow Bar, 40" - Hammered Black

What It Is

The Brinly SA2-40BH-P is a tow-behind spike aerator designed for use with lawn tractors and zero-turn mowers. It covers a 40-inch swath, punching holes into compacted soil to improve air, water, and nutrient flow to grassroots.

Fitment & Compatibility

• Hitch type: Requires a standard 2-inch receiver hitch (class I or II) — most lawn tractors and ZTRs have this. The double tow bar lets you pull a second attachment (like a spreader or dethatcher) behind the aerator.
• Deck size & power: Works best with tractors/ZTRs having at least 12-15 HP and a 38- to 54-inch deck. Underpowered machines may struggle on heavy or wet soil.
• Weight & loading: Unit weighs ~72 lbs. Add up to 100 lbs of optional weight plates (not included) for deeper penetration. Check your tractor’s tow capacity — most lawn tractors handle 150-200 lbs easily.
• Not for: Walk-behind mowers, sub-compact tractors, or any machine without a receiver hitch.

Key Things to Know

• Assembly required: Takes about 30-45 minutes with basic tools. Instructions are clear but you’ll need a wrench and socket set.
• Spike depth: Without added weight, spikes penetrate only about 1-2 inches in firm soil. For compacted clay, add weight plates (sold separately) to reach 3-4 inches.
• Double tow bar: A unique feature — lets you hook up a second implement behind the aerator. Handy for overseeding or fertilizing in one pass, but adds length (total ~60 inches).
• Durability: Steel frame with hammered black powder coat resists rust. Spikes are replaceable (Brinly part #SA2-40-SPK). Some users report bent spikes on rocky soil — avoid hitting rocks or roots.

Should You Buy It

Yes, if you have a lawn tractor or ZTR with a 2-inch receiver and you need to aerate a large lawn (1/2 acre or more) efficiently. The double tow bar is a bonus for combining aeration with seeding or fertilizing. Skip it if your soil is very rocky, or you prefer core aeration for heavy clay — spikes can worsen compaction in dense clay without deep penetration.