GICOOL 20x8.00-8 Tire and Wheel, 4 Ply Tubeless Lawn Mower Tire Replacement 20x8-8nhs Riding Tractor Mower and Rear Tire and Wheel Assemblies, 3.5" Offset Hub, 3/4" Borehole, and 3/16" Keyway, 2 Pack

What It Is

The GICOOL 20x8.00-8 tire and wheel assembly is a direct replacement for rear tires on riding mowers, lawn tractors, and zero-turn mowers. It’s designed for machines that need a 20-inch tall, 8-inch wide tire on an 8-inch rim, with a 3/4-inch axle bore and 3/16-inch keyway for secure drive engagement.

Fitment & Compatibility

Before buying, verify these measurements on your current setup:

• Tire size: Must be 20x8.00-8 (or 20x8-8). This is a common rear tire size for many John Deere, Craftsman, Husqvarna, Troy-Bilt, and MTD models, but always cross-check your OEM part number.
• Axle bore: The center hole is 3/4-inch (0.75”). Measure your axle shaft diameter—if it’s 5/8-inch or 1-inch, this wheel won’t fit without an adapter.
• Keyway: 3/16-inch wide. If your axle uses a different key size (e.g., 1/4-inch), you’ll need a different wheel or a bushing kit.
• Offset: 3.5-inch offset hub. This pushes the tire outward from the mounting surface. Measure your current wheel’s offset to ensure clearance with fenders, frame, or deck.
• Bolt pattern: This is a 4-hole wheel, but pattern is not listed—measure center-to-center on your existing wheel’s bolt holes. Common patterns are 4x4-inch or 4x5.5-inch.

Check your mower’s manual or look up your model number (e.g., “John Deere D100 rear tire”) for OEM compatibility. This is a 4-ply tubeless tire—do not use with tubes unless specified.

Key Things to Know

• Quality: 4-ply rating is standard for residential mowers. Users report good tread life on grass and light dirt, but not for heavy commercial use or rocky terrain.
• Installation: Requires basic tools—jack, socket set, and possibly a breaker bar for stubborn lug nuts. No tire mounting needed (pre-assembled on wheel). Keyway alignment is straightforward but must be precise to avoid wobble.
• Common gotcha: The 3.5-inch offset may differ from your original wheel by 0.5 inches or more. Measure carefully—incorrect offset can cause tire rub on the deck or frame, especially on tight turns.
• Tubeless note: Ensure your rim bead seals properly. If it leaks, clean the rim edge or use a bead sealer. Do not add a tube unless the tire is marked “tubeless type” (it is) and the rim has no damage.

Should You Buy It

This is a solid value for homeowners replacing worn rear tires on common riding mowers, especially if you need a 3/4-inch bore with a 3/16-inch keyway. It’s not for heavy-duty commercial mowers or machines with oddball offsets. If your measurements match and you want a pre-assembled, no-fuss replacement, this two-pack saves you from buying singles and aligns with OEM specs for many popular brands.