Danny Mercer
Head of Fitting & Reviews
Danny covers fitting, balancing and tyre-wear questions. His editorial area focuses on what a driver needs to understand before booking work, the information a fitter needs and the difference between a useful symptom and a confirmed diagnosis.
Areas of expertise
Guides credited to Danny
- Asymmetric Tyres Explained (Inside & Outside)Sizes & Markings
- Directional Tyres & the Rotation Arrow ExplainedSizes & Markings
- How to Read a Tyre SizeSizes & Markings
- Rim Protector Markings (FR, MFS, FP) ExplainedSizes & Markings
- Run-Flat Tyres & Their Markings ExplainedSizes & Markings
- Tread Wear Indicators (TWI) ExplainedSizes & Markings
- Tyre Width ExplainedSizes & Markings
- What Does 205/55 R16 Mean?Sizes & Markings
- What Does 91V Mean on a Tyre?Sizes & Markings
- How to Check Your Tyre Tread DepthMaintenance & Care
- How to Check Your Tyre PressureMaintenance & Care
- How to Make Your Tyres Last LongerMaintenance & Care
- The TPMS Warning Light: What It MeansMaintenance & Care
- Types of Spare Wheel ExplainedMaintenance & Care
- Tyre Rotation: What It Is and Why It MattersMaintenance & Care
- Under-Inflated Tyres: Signs & RisksMaintenance & Care
- Wheel Alignment ExplainedMaintenance & Care
- Can Run-Flat Tyres Be Repaired?Safety & Law
- Common Tyre MOT Failures (and How to Avoid Them)Safety & Law
- How to Spot an Illegal Part-Worn TyreSafety & Law
- How Tyres Affect Stopping DistanceSafety & Law
- Part-Worn vs New Tyres: Which Is Cheaper?Safety & Law
- Tyre Sidewall Damage ExplainedSafety & Law
- Tyre Bulges: Causes & Why They're DangerousSafety & Law
- The Tyre Repair Area ExplainedSafety & Law
- Buying Tyres Online vs at a FitterChoosing & Buying
- How Much Do Tyres Cost in the UK?Choosing & Buying
- How to Choose the Right Tyres for Your CarChoosing & Buying
- What's Included in Tyre Fitting?Choosing & Buying
- How a Tyre Is Made: Anatomy of a TyreTypes & Technology
Plus 12 more guides across the site.
Danny: editorial subject area
These guides fall within Danny's editorial subject area.
- Best Summer Tyres for UK DriversTyre Reviews
- BFGoodrich Tyres Review: Should You Buy?Tyre Reviews
- Goodride Tyres Review: Are They Any Good?Tyre Reviews
- Lassa Tyres Review: Are They Any Good?Tyre Reviews
- Nankang Tyres Review: Are They Any Good?Tyre Reviews
- Toyo Tyres Review: Should You Buy?Tyre Reviews
- Can You Change Your Tyre Size? The UK RulesSizes & Markings
- What the Coloured Dots on New Tyres MeanSizes & Markings
- Directional, Asymmetric & Symmetric Tyres ExplainedSizes & Markings
- Does Changing Tyre Size Affect the Speedometer?Sizes & Markings
- Flotation Tyre Sizes Explained (31x10.50 R15)Sizes & Markings
- Tyre Fuel Efficiency Rating ExplainedSizes & Markings
- How to Check a Tyre's Age (Date Code)Sizes & Markings
- M+S vs the Snowflake: Which Winter Marking Counts?Sizes & Markings
- Mixing Tyres: The Rules on Sizes & TypesSizes & Markings
- OE & Manufacturer Approval Markings (★, MO, AO, N)Sizes & Markings
- Tubeless vs Tube-Type Tyres (TL & TT)Sizes & Markings
- The Tyre Label Explained: Fuel, Wet Grip and NoiseSizes & Markings
- Tyre Load Index ExplainedSizes & Markings
- Tyre Noise Rating ExplainedSizes & Markings
- Tyre Profile & Aspect Ratio ExplainedSizes & Markings
- Tyre Wheel Diameter ExplainedSizes & Markings
- UTQG Ratings Explained: Treadwear, Traction & TemperatureSizes & Markings
- Van & Commercial Tyre Markings Explained (C, CP)Sizes & Markings
- Tyre Wet Grip Rating Explained (A to E)Sizes & Markings
- What Does M+S Mean on a Tyre?Sizes & Markings
- What Does R Mean on a Tyre?Sizes & Markings
- XL, Extra Load & Reinforced Tyres ExplainedSizes & Markings
- Can Bad Alignment Damage Your Tyres?Maintenance & Care
- What Is the Correct Tyre Pressure?Maintenance & Care
Plus 82 more guides across the site.
How Danny works at Tyres HQ
Fitting guidance should explain the job, its limits and the quotation clearly. It should also distinguish routine checks from work requiring workshop equipment, without suggesting that a remote description can certify a tyre safe.
Our editorial standards distinguish general guidance from an inspection or physical tyre test. A useful claim needs the right source and context, and a revision should also update the summary and FAQs where the same point appears.
You can read how this works in our editorial guidelines and in how we review tyres. Spotted something that looks wrong? Our corrections policy explains how to tell us.
