---
product_id: 742180345
title: "Pirelli MT 21 Rallycross 120/80-18 Rear Tire - DOT Dual-Sport/Enduro | DOT-approved dual-sport tire. Tread for off-road & rally. High-performance grip. Fits adventure & dirt bikes. With Keychain."
brand: "pirelli"
price: "R14270"
currency: ZAR
in_stock: true
reviews_count: 4
category: "Pirelli"
url: https://www.desertcart.co.za/products/742180345-pirelli-mt-21-rallycross-120-80-18-rear-tire-dot
store_origin: ZA
region: South Africa
---

# Optimized tread for on/off-road mastery 120/80-18 size for versatile fit Tear-resistant compound for durability Pirelli MT 21 Rallycross 120/80-18 Rear Tire - DOT Dual-Sport/Enduro | DOT-approved dual-sport tire. Tread for off-road & rally. High-performance grip. Fits adventure & dirt bikes. With Keychain.

**Brand:** pirelli
**Price:** R14270
**Availability:** ✅ In Stock

## Summary

> 🏁 Grip the wild, own the road – Pirelli MT 21 Rallycross leads the pack!

## Quick Answers

- **What is this?** Pirelli MT 21 Rallycross 120/80-18 Rear Tire - DOT Dual-Sport/Enduro | DOT-approved dual-sport tire. Tread for off-road & rally. High-performance grip. Fits adventure & dirt bikes. With Keychain. by pirelli
- **How much does it cost?** R14270 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/742180345-pirelli-mt-21-rallycross-120-80-18-rear-tire-dot)

## Best For

- pirelli enthusiasts

## Why This Product

- Trusted pirelli brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Sport Dominance:** Seamlessly conquer both rugged trails and smooth highways with confidence.
- • **Enduro-Grade Durability:** Reinforced blocks and puncture-resistant design ensure your tire outlasts the toughest terrains.
- • **Iconic Pirelli Performance:** Trusted by pros, backed by a 10-ply construction and DOT approval for ultimate reliability.
- • **Precision Control at Speed:** Flexible yet stable carcass delivers high-speed stability and razor-sharp handling.
- • **Year-Round Adventure Ready:** Designed for all seasons, so your ride never has to pause.

## Overview

The Pirelli MT 21 Rallycross 120/80-18 Rear Tire is a DOT-approved, dual-sport tire engineered for adventure riders seeking unmatched performance on both dirt and pavement. Featuring a tear-resistant compound, optimized asymmetrical tread, and a flexible yet stable 10-ply carcass, it delivers exceptional grip, durability, and high-speed stability year-round. Perfect for motocross, cross-country, and desert riding, this tire ensures you stay ahead in every terrain.

## Description

Buy Pirelli MT 21 Rallycross 120/80-18 Rear Tire - DOT Dual-Sport/Enduro | DOT-approved dual-sport tire. Tread for off-road & rally. High-performance grip. Fits adventure & dirt bikes. With Keychain.: Motocross - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Mounting - Excellent tires for the klx300. They are a bitch to mount the rimlock. I had to get the tires to almost 90psi to set the beadlock right otherwise they are nice.
Review: Happy with purchase - No problems, product as expected

## Features

- Reliable On/Off-Road Performance – Tackle difficult terrain with confidence while maintaining smooth handling on paved roads.
- Optimized Tread Design – Specially designed for dirt roads, gravel, cross-country racing, and desert riding.
- Tear-Resistant Compound – Reinforced block construction ensures longevity and grip in harsh off-road conditions.
- Flexible & Stable Carcass – Provides high-speed stability and precision control in any environment.
- Puncture-Resistant Structure – Engineered to withstand high speeds and rough terrain without compromising durability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FD4BRRKM |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #736,012 in Automotive ( See Top 100 in Automotive ) #121 in Motocross Tires |
| Brand | Pirelli |
| Brand Name | Pirelli |
| Construction Type | Bias |
| Customer Reviews | 5.0 out of 5 stars 14 Reviews |
| 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 |
| 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 |
| Number of Packs | 1 |
| 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 |
| Tire Diameter | 25.6 inches |
| Tread Depth | 11 millimeters |
| Tread Type | Asymmetrical |
| UPC | 810196671140 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 120/80-18 |

## Product Details

- **Brand:** Pirelli
- **Load Capacity:** 584 pounds
- **Load Index:** 62
- **Rim Size:** 18 inches
- **Section Width:** 4.7 inches
- **Size:** 120/80-18
- **Speed Rating:** R
- **Tire Aspect Ratio:** 80
- **Tread Depth:** 11 millimeters
- **Tread Type:** Asymmetrical

## Images

![Pirelli MT 21 Rallycross 120/80-18 Rear Tire - DOT Dual-Sport/Enduro | DOT-approved dual-sport tire. Tread for off-road & rally. High-performance grip. Fits adventure & dirt bikes. With Keychain. - Image 1](https://m.media-amazon.com/images/I/61HWNyz1ONL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How much air should I put in my tires?**
A: It is always recommended to use the pressures advised by your motorcycle manufacturer. These can be find in the motorcycle handbook and the tire specfication section.

**Q: Why do tires lose pressure in cold weather?**
A: In cold weather, tire pressure drops because the air inside contracts, so it’s important to check and maintain proper pressure for safety and performance.

**Q: What do the numbers on tires mean?**
A: The numbers on a motorcycle tire show key details like its size, fit, and performance ratings, including width, aspect ratio, rim size, load capacity, and speed rating.

**Q: Do motorcycle tires need to be balanced?**
A: An unbalanced motorcycle tire can cause vibrations, uneven wear, and reduced stability, so proper balancing is important for a smoother, safer ride and longer tire life.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Mounting
*by E***D on August 12, 2026*

Excellent tires for the klx300. They are a bitch to mount the rimlock. I had to get the tires to almost 90psi to set the beadlock right otherwise they are nice.

### ⭐⭐⭐⭐⭐ Happy with purchase
*by A***R on July 9, 2026*

No problems, product as expected

### ⭐⭐⭐⭐⭐ Top notch everything.
*by L***2 on March 27, 2026*

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.

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**Shop now:** [https://www.desertcart.co.za/products/742180345-pirelli-mt-21-rallycross-120-80-18-rear-tire-dot](https://www.desertcart.co.za/products/742180345-pirelli-mt-21-rallycross-120-80-18-rear-tire-dot)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-04*