ThunderX3 Core Racer Review

Introduction

The ThunderX3 Core Racer is a gaming chair designed in XL format, offering a stable construction and comfortable seating for extended gaming sessions. With a generous seat size of 54 × 54 cm and support for users up to 150 kg, it caters to those seeking a spacious and ergonomic gaming chair.

During testing, the Core Racer demonstrated impressive build quality and thoughtful design features that prioritise both comfort and functionality. The chair's larger dimensions make it particularly suitable for taller or broader users who often find standard gaming chairs restrictive.

Design and Build Quality

The Core Racer arrives well-packaged and assembly proves remarkably straightforward, taking approximately 12 minutes from start to finish. The instructions are clear, and all necessary tools are included in the package.

The chair's construction feels robust and substantial. The faux leather upholstery is of good quality, with tight stitching and no obvious weak points. The XL format is immediately noticeable—this is a chair built for larger frames, with seat dimensions of 54 × 54 cm providing ample space.

The base features a sturdy five-star design with smooth-rolling casters that glide effortlessly across both hard floors and carpets. The gas lift mechanism operates smoothly, offering height adjustment from 48 to 57 cm, accommodating users between 160 and 200 cm tall.

Comfort and Ergonomics

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Where the Core Racer truly excels is in its ergonomic design. The integrated CORE.RDY technology provides dynamic lumbar support that adjusts automatically to your posture. Unlike removable lumbar cushions that can shift or feel intrusive, this integrated system feels natural and supportive.

The backrest extends to 86 cm in height and can recline up to 155°, allowing for everything from upright working positions to relaxed gaming or viewing angles. The tilt mechanism locks securely at multiple points, and the resistance can be adjusted to suit your preference.

The memory foam headrest cushion is a welcome addition, providing soft yet supportive comfort for the neck during extended sessions. The cushion features pronounced wings that cradle the head without feeling constrictive.

Features and Adjustability

The 4D armrests offer comprehensive adjustment options—height, angle, lateral position, and forward/backward movement. This level of customisation ensures you can find the perfect arm position for gaming, typing, or general desk work.

An interesting inclusion is the 3-in-1 footrest. Whilst not essential for everyone, it adds versatility to the chair, allowing you to prop up your feet during breaks or recline for a more relaxed position. The footrest features a solid base and curved cushion with firm foam padding.

The seat depth can be adjusted via a simple lever, which is particularly useful for those who want to either sit deeper into the chair or prefer a more perched position at the edge.

Performance

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In practice, the Core Racer delivers on its promises. The XL format provides genuine breathing room—there's no feeling of being squeezed or restricted, even during marathon gaming sessions. The faux leather remains comfortable and doesn't become excessively warm or sticky, though in very hot conditions, breathable fabric might be preferable.

The chair's stability is noteworthy. There's no wobbling or creaking, even when shifting weight or adjusting position. The recommended weight limit of 150 kg appears conservative; the chair feels solid well within that range.

The CORE.RDY lumbar support system genuinely works. It provides support without feeling overly aggressive or creating pressure points. The automatic adjustment means you're not constantly fiddling with pillows or cushions.

Pros and Cons

What We Liked

• Generous XL dimensions (54 × 54 cm seat)
• Quick and straightforward assembly (12 minutes)
• Excellent build quality and stability
• Integrated CORE.RDY lumbar support
• Comprehensive 4D armrest adjustment
• Memory foam headrest cushion
• Smooth height adjustment (48-57 cm)
• Supports users from 160-200 cm tall
• 155° recline capability
• Includes 3-in-1 footrest
• Quality faux leather upholstery
• No wobbling or structural issues

What Could Be Better

• Faux leather may be warm in hot conditions
• XL size requires adequate space
• No breathable fabric option available
• Footrest may not suit all users
• Premium price point for the category

Verdict

The ThunderX3 Core Racer earns its "good" rating through consistent execution across all key areas. It's a well-built gaming chair that delivers genuine comfort and practical ergonomic features without gimmicks or unnecessary complexity.

The XL format is its defining characteristic, and for users who need that extra space, the Core Racer is an excellent choice. The build quality inspires confidence, the comfort is genuine rather than superficial, and the integrated lumbar support system represents a thoughtful approach to ergonomics.

At £249.95, it occupies a competitive position in the gaming chair market. Whilst not the cheapest option available, the quality of construction, generous proportions, and effective ergonomic features justify the investment for those who spend significant time seated.

For larger users, or anyone who simply prefers a more spacious seating experience, the ThunderX3 Core Racer delivers solid value. It's a chair built for comfort during extended use, and it achieves that goal admirably.