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HEAD Graphene 360+ Extreme MP Tennis Racquet, vs HEAD Speed 21 Junior Pre-Strung Tennis Racquet,

Updated August 2026 — HEAD Graphene 360+ Extreme MP Tennis Racquet, wins on spin power and design, HEAD Speed 21 Junior Pre-Strung Tennis Racquet, wins on weight and grip.

The HEAD Graphene 360+ Extreme MP is ideal for serious adult players, while the HEAD Speed 21 Junior is perfect for young beginners. Choose based on age and skill level.

Why HEAD Graphene 360+ Extreme MP Tennis Racquet, is better

Performance

Advanced technology for experienced players

Weight

Better stability with a heavier frame

Target Audience

Designed for competitive adult players

Why HEAD Speed 21 Junior Pre-Strung Tennis Racquet, is better

Price

More affordable for beginners

Weight

Lightweight for easy handling

Grip

Kid-friendly grip for small hands

Overall score

HEAD Graphene 360+ Extreme MP Tennis Racquet,
85
HEAD Speed 21 Junior Pre-Strung Tennis Racquet,
65

Specifications

SpecHEAD Graphene 360+ Extreme MP Tennis Racquet,HEAD Speed 21 Junior Pre-Strung Tennis Racquet,
BrandHEADHEAD
Price$139.00$28.75
Sales Rank7344633571
MaterialGrapheneAluminum
Age GroupAdultKids

Dimension comparison

HEAD Graphene 360+ Extreme MP Tennis Racquet,HEAD Speed 21 Junior Pre-Strung Tennis Racquet,

Introduction to the HEAD Graphene 360+ Extreme MP and HEAD Speed 21 Junior

When choosing a tennis racquet, the HEAD Graphene 360+ Extreme MP and the HEAD Speed 21 Junior serve distinct purposes tailored to different players. The Extreme MP is designed for adults seeking high performance, while the Speed 21 caters to young beginners. With their unique features and price points, understanding these differences can help you make an informed choice.

Target Audience

The HEAD Graphene 360+ Extreme MP is aimed at adult players who desire a racquet that enhances their aggressive playing style. Weighing in at 300 grams (10.6 oz), it provides stability and power, making it suitable for competitive play. In contrast, the HEAD Speed 21 Junior is specifically designed for children aged 4 to 6, featuring a lightweight frame of 180 grams (6.3 oz), which allows young players to swing comfortably and develop their skills without unnecessary strain. This clear distinction in target audience is essential when selecting the right racquet.

Price Comparison

There is a significant price difference between the two racquets. The HEAD Graphene 360+ Extreme MP is priced at $139.00, whereas the HEAD Speed 21 Junior is much more budget-friendly at $28.75. This means the Extreme MP is about 384% more expensive than the Speed 21. The higher price of the Extreme MP reflects its advanced technology and performance-oriented features, making it a worthwhile investment for serious players. Conversely, the Speed 21's lower price makes it an excellent choice for parents looking to introduce their children to tennis without a hefty financial commitment.

Design and Build Quality

The design and build quality of the HEAD Graphene 360+ Extreme MP reflects its premium positioning. It incorporates HEAD's innovative Graphene 360+ technology, which optimizes energy transfer and enhances flexibility for a better impact feel. This technology translates into a dynamic frame that supports aggressive play. On the other hand, the HEAD Speed 21 Junior is constructed from durable aluminum, ensuring it can withstand the rigors of youth play. While it may not have the sophisticated technology of the Extreme MP, its lightweight aluminum frame is designed to help kids develop their coordination and technique effectively.

Performance Features

Performance is a crucial differentiator between the two racquets. The HEAD Graphene 360+ Extreme MP features an open 16/19 string pattern that maximizes spin potential and power, allowing players to execute advanced shots with ease. Its head size of 100 square inches provides a larger sweet spot for optimal performance. In contrast, the Speed 21 Junior has a smaller head size of 76 square inches, designed to provide a forgiving sweet spot for young players learning the game. While the Extreme MP is engineered for experienced players seeking to enhance their skills, the Speed 21 focuses on helping beginners develop their fundamentals in a comfortable and manageable way.

Grip and Comfort

Grip comfort is vital for both products, albeit for different reasons. The HEAD Graphene 360+ Extreme MP features a 4 1/2 grip size, which is designed for adult hands, ensuring a secure hold during intense matches. Its overall design caters to serious players who need precision and stability. Conversely, the HEAD Speed 21 Junior is designed with a youth-friendly grip that accommodates the smaller hands of children aged 4 to 6. This thoughtful design ensures that young players can hold the racquet comfortably, promoting better control as they learn to swing and play.

Sales Ranking

Sales rank can reflect a product's popularity and acceptance in the market. The HEAD Graphene 360+ Extreme MP has a sales rank of 73,446, indicating that while it has a niche audience, it may not be the best-seller in its category. In contrast, the HEAD Speed 21 Junior has a better sales rank of 33,571, suggesting it is a popular choice among parents and young players. This difference in sales rank highlights the Speed 21's appeal to the beginner market, while the Extreme MP caters to a more specialized audience.

Which should you buy?

Ultimately, the choice between the HEAD Graphene 360+ Extreme MP and the HEAD Speed 21 Junior hinges on the player's age, skill level, and specific needs. The Extreme MP is ideal for adults who are serious about their game and require a racquet that enhances performance with advanced technology, priced at $139.00. Conversely, the Speed 21 Junior is perfect for young beginners, offering a lightweight, durable option at an accessible price of $28.75. If you’re looking for a racquet for yourself as an adult player, the Extreme MP is the clear winner. However, for parents introducing their children to tennis, the Speed 21 Junior provides excellent value and user-friendliness.