Wilson
Wilson Slam Junior 25 Boys (WR171810U) Tennis Racket (205g)
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Wilson Slam Junior 25 Boys (WR171810U) Tennis Racket (205g)
Blue / 25"
Birmingham store
Unit 1,The Quadrant,Summer Hill Rd
Birmingham B1 2PD
United Kingdom
Cardiff (Tower House)
Tower house,13a Ipswich Road
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Cardiff Cathays store
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86-90 Crwys Road
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4 Bewell Street
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Milton Keynes (National Badminton Centre)
Central Sports - National Badminton Centre - Bradwell Road
Loughton Lodge, Great Holm
Milton Keynes MK8 9LA
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Racket Specifications
Balance & Flex Profile
The Wilson Slam JR 25 (model number WR171810U) is a beginner junior tennis racket for players aged 9–10 who are developing their game and gaining confidence on court. Its lightweight aluminium frame balances power, stability and ease of use, making learning tennis enjoyable and effective.
Key Features
- Sized for 9–10 year olds – a 25-inch frame that helps young players develop correct swing mechanics.
- AirLite Alloy frame – lightweight aluminium construction for strength and manoeuvrability.
- Large 106 sq in head – an expanded sweet spot for forgiving, confident contact.
- 16x19 string pattern – supports spin and playability from the baseline or at the net.
- Stable and easy to control – tuned for juniors starting to rally and compete.
- Bright colourway – an energetic design that keeps young players engaged.
- Pre-strung – factory strung and ready to play out of the box.
Performance Overview
AirLite Alloy gives durability without bulk, so younger players can swing freely and with control. The generous head size adds forgiveness on off-centre shots, and the forgiving frame with junior-specific specifications makes for a smooth move into more structured training and match play.
Who Is It For?
- Juniors aged 9–10 starting tennis or developing early match-play skills
- Parents looking for a durable, beginner-focused racket
- Players ready for their first full junior frame before moving to adult rackets
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | Wilson |
| Model | Slam JR 25 |
| Model number | WR171810U |
| Head size | 683 cm² / 106 in² |
| Length | 63.5 cm / 25 in |
| String pattern | 16x19 |
| Strung weight | 220g / 7.76 oz |
| Unstrung weight | 205g / 7.23 oz |
| Strung balance | 31 cm / -2 pts HL |
| Unstrung balance | 30 cm / -5 pts HL |
| Beam | 21mm Reverse C Beam |
| Construction | AirLite Alloy |
| Supplied | Pre-strung |
Why Buy from Central Sports?
- ✅ 100% Genuine & Authorised Wilson Products
- 🎾 Half-price string upgrade
- 📦 Secure Packaging & Fast Processing
- 🤝 Reliable Customer Support
- 🆕 Access to Latest Releases & Collections
- ✍️ Free personalised autograph
Final Verdict
A reliable, easy-to-use stepping stone from introductory sessions into structured practice and competition.
| Specification | Detail |
|---|---|
| Brand | Wilson |
| Model | Slam JR 25 |
| Model number | WR171810U |
| Head size | 683 cm² / 106 in² |
| Length | 63.5 cm / 25 in |
| String pattern | 16x19 |
| Strung weight | 220g / 7.76 oz |
| Unstrung weight | 205g / 7.23 oz |
| Strung balance | 31 cm / -2 pts HL |
| Unstrung balance | 30 cm / -5 pts HL |
| Beam | 21mm Reverse C Beam |
| Construction | AirLite Alloy |
| Supplied | Pre-strung |
| Colour | Blue |
|---|---|
| Level | Beginner |
| Gender | Junior |
Frequently asked questions
It weighs 205g / 7.23 oz.
Head size: 683 cm² / 106 in² / string pattern: 16x19.
Supplied: Pre-strung.
It suits juniors aged 9–10 starting tennis or developing early match-play skills; parents looking for a durable, beginner-focused racket; players ready for their first full junior frame before moving to adult rackets.
A half-price string upgrade is available – choose your string when you add this racket to your basket.
Yes – a free personalised autograph is available on this racket. Autographed rackets take 2–4 working days to process before dispatch.
Customised rackets cannot be returned – this includes rackets that have been restrung, re-gripped or autographed. Unstrung, unused rackets in their original packaging can be returned within 14 days of purchase. See our returns policy.