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đ Grip the wild, own the road â Pirelli MT 21 Rallycross, where adventure meets precision.
The Pirelli MT 21 Rallycross 120/80-18 Rear Motorcycle Tire is a DOT-approved, dual-sport tire designed for riders who demand high-performance grip and durability both on paved roads and challenging off-road terrains. Featuring a 10-ply tear-resistant carcass, an aggressive asymmetrical tread optimized for dirt, gravel, and desert conditions, and a flexible yet stable structure for precise control at speed, this tire supports a load capacity of 584 pounds and fits adventure and dirt bikes with 18-inch rims. It comes with a stylish Pirelli keychain, making it the ultimate companion for year-round, fearless exploration.
| ASIN | B0FD4BRRKM |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #220,478 in Automotive ( See Top 100 in Automotive ) #40 in Motocross Tires |
| Brand Name | Pirelli |
| Construction Type | Bias |
| Customer Reviews | 4.5 4.5 out of 5 stars (5) |
| Included Components | (1) Pirelli MT 21 Rallycross 120/80-18 Rear Motorcycle Tire (1) Pirelli Keychain |
| Item Diameter | 25.6 Inches |
| Load Capacity | 584 Pounds |
| Load Index | 62.0 |
| Manufacturer | Pirelli |
| Manufacturer Part Number | P01-100 3988900 |
| Manufacturer Warranty Description | https://www.pirelli.com/tires/en-us/motorcycle/tire-warranty |
| Model Number | P01-100 3988900 |
| Ply | 10-Ply |
| Rim Size | 18 Inches |
| Seasons | Year Round |
| Section Width | 4.7 Inches |
| Size | 120/80-18 |
| Speed Rating | R |
| Tire Aspect Ratio | 80.0 |
| Tire Diameter | 25.6 Inches |
| Tread Depth | 11 Millimeters |
| Tread Type | Asymmetrical |
| UPC | 810196671140 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 120/80-18 |
L**2
Top notch everything.
Arrived 1 day sooner than promised, top tier tires are excellent. Bought both front and rear and both tires have recent manufacture dates, a big deal as last time I ordered from Cycle Gear Chain and the rear was 3 years old.
S**E
To hard to mount.
Great tires but Extremely hard to mount. I think this is the last one I am going to buy. I had the same rear tire on another bike last year and couldnât even get that one on. Had to take it to the Honda dealership. If you get a flat on a trail your not going to be changing this tire in woods. They do get god grip and do not wear fast riding on the rd. But like I said you get a flat good luck changing it.
E**.
Excellent tire.
Excellent front tire, good price and good grip.
Trustpilot
1 month ago
1 week ago