F1 Pro Task Chair

The F1 chassis with a mechanism that sets itself – F1 Pro replaces the manual tension handle with automatic weight tension adjustment. The mechanism adapts to your sitting position through your body weight and the pressure you place on the backrest, so the recline resistance is right without anyone having to set it.

Why that matters in practice – Most task chairs are delivered on a factory tension setting and never adjusted, which leaves lighter users fighting the backrest and heavier users unsupported. An automatic mechanism removes that failure mode entirely. Upholstery is applied adhesive-free, and the base runs load-controlled braked twin castors.

Key Highlights:

• Automatic weight tension adjustment — no manual dial to set

• Point-synchromatic mechanism with free-flow recline and four-position lock

• 70 mm sliding seat depth adjustment — standard

• Adhesive-free upholstery, fully recyclable and breathable

• Manufactured in accordance with EN 1335, plus Blauer Engel and BIFMA LEVEL 3

• Load-controlled braked twin castors — the chair stays where you leave it

The seat travels 400–530 mm in height and slides through 70 mm of depth as standard, and the point-synchromatic mechanism reads your body weight to set its own recline tension. The full set of adjustments:

• Pneumatic seat height adjustment: 400–530 mm

• Automatic torsion control: recline resistance is set by your body weight

• Sliding seat depth: 70 mm

• Four-position tilt lock

• Lumbar support: optional — 4-way on mesh builds

• Headrest: optional on 61 cm upholstered and mesh builds

Technical Specifications

Delivery, returns & what’s included

• Free tracked UK delivery — typically 4–5 weeks from order.
• Delivered fully assembled — your chair arrives built and ready to use. No assembly, no tools, nothing to book.
• 14-Day Hassle-Free Returns if the chair isn’t the right fit for you (see full policy for details).
• 5-Year manufacturer’s warranty, coordinated directly by Apex with UK-based support.
• The Apex Ergonomics Pack — complimentary with every chair: our 6-page guide to setup, posture and chair care, emailed after your order.

Every Apex Comfort chair includes your complimentary 6-page Apex Ergonomics Pack — emailed automatically once your order is confirmed. A concise, practical guide to setting up and getting the most from your chair, so it delivers the support you paid for from day one.

Inside the pack

• 10-minute desk & chair setup checklist — set height, posture and screen position correctly the first time.
• Visual posture reference — keep it to hand through long working days.
• Movement breaks & desk stretches — reduce stiffness during extended sessions.
• Chair care & maintenance — keep your chair performing and looking its best for years.

Why it matters

Even a well-engineered chair won't help if it's set up incorrectly — you'll carry the same aches into a new chair. This guide covers the small, high-impact adjustments that fix the cause, not the symptom, so your chair delivers the comfort and support it's built for.

How you receive it

Place any order and we'll email your download link as soon as your order is confirmed. Open it on your phone, tablet or laptop and follow the steps as you set up your chair.

The Apex Ergonomics Pack is available only to Apex Comfort customers — not included when the same chairs are bought from general retailers or marketplaces.