Triumph TR7
Find Tyres for 1974-1981 Triumph TR7
UK-market tyre sizes for the 1974-1981 Triumph TR7, with chassis-code matching and trim notes.
About this generation
The 1974-1981 Triumph TR7 occupies a specific slot in the Triumph lineup, and tyre choice for this generation has to match the wheel and trim ordered from new. The figures on this page reflect UK-market original-equipment fitments.
The 1974-1981 Triumph TR7 is an older generation. Most original sizes are still produced for the UK market, though limited variants may need a specialist tyre supplier.
Common factory tyre sizes
UK-market factory fitments for the 1974-1981 Triumph TR7 typically include:
Wet grip is the most relevant EU label rating for UK driving. On the TR7, prioritise wet grip A or B for shorter braking in rain.
Original-equipment sizes shown here are typical UK fitments. Sport packs, optional alloy upgrades and dealer accessories can change the size — always confirm before fitting.
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Frequently asked questions
Quick answers about UK tyre fitment, MOT rules and seasonal options.
Are all-season tyres suitable for the Triumph TR7?
All-season tyres carrying the 3PMSF snowflake symbol are a sensible choice for UK Triumph TR7 drivers who don't want to swap between summer and winter sets. Confirm the size and load rating match your OEM spec.
What should Triumph TR7 drivers know about UK potholes?
UK road conditions are tough on tyres. Check sidewall bulges, cuts and tread depth regularly — especially on the inside edge, which often wears unevenly. A 20p coin gives a quick legal-tread check.
What tyre size does the 1974-1981 Triumph TR7 use?
Common UK factory fitments for the 1974-1981 Triumph TR7 include 175/70 R13. The exact size depends on the wheel and trim ordered — always confirm on your tyre sidewall before fitting.
Are tyres for the 1974-era Triumph TR7 still available?
Yes — common sizes for the 1974-1981 Triumph TR7 remain in production from major UK brands. Some classic-specific sizes may need a specialist supplier, especially for limited or sport variants.
Are run-flat tyres needed on the 1974-1981 Triumph TR7?
Most 1974-1981 Triumph TR7 cars were supplied with conventional tyres and a spare or repair kit. Only fit run-flats if your specific car was originally specified with them and has tyre pressure monitoring.
Tyre Finder UK provides general tyre guidance only. We do not guarantee tyre fitment, local stock, prices or fitting availability. Always confirm your tyre size, load rating, speed rating and vehicle requirements using your current tyre sidewall, vehicle handbook, manufacturer guidance or a qualified tyre fitter before fitting.