525 x 21

A 5.25 x 21 high quality cross ply tyre with a correct period triple stud pattern designed in house at Blockley, offering truly fantastic handling and ride characteristics.

Type Crossply
Rim diameter 21"
Tread width 4.30"
Overall width 5.50"
Overall diameter 31.90"
Rim width (min) 2.75"
Rim width (max) 3.75"
Rim width (recommended) 3.25"

(£196.80 inc. vat)


Our Blockley 525x21 tyre is a size suitable for many vintage cars such as Austin 12/4, Bentley and Vauxhall. Built to the highest quality that is possible, it's low price is only because we sell our Blockley tyres direct to the end user, and not using the Classic tyre wholesalers, so their margins are not built into the price. These Blockley 525x21 are, as a consequence, exceptional value especially when you consider even a Coker Firestone 5.25x21 is priced £234 plus tax (£281, each) ! But by selling direct and not through the tyre wholesaler outfits we do not have to include the mark-ups in our prices which means the best is not the most expensive!

All Blockley Cross (Bias) ply tyres are made to fit the original rim widths. In addition they are genuine tyres for road use, with a robust sidewall and covering, capable of being 'curbed' as you would expect from a tyre suitable for road use. The Dunlop triple stud pattern in period was a problematic one, which resulted in it being superseded. We liked the period look of the triple stud tyre, so we re-designed all features of this pattern to make it work correctly without wearing out in no time. The compounding of all our cross (Bias) ply tyres conform to FIA Appendix K which uses Dunlop 204 compound as its reference hardness. This same Blockley tyre, surprisingly, has no equal having won many thousands of races and other competitions as well as Concours d'Elegance events, including class wins and overall best of show at Pebble Beach!

This is why we coined the term Road Race for tyres when we started. Which has been copied (as have many of our tyres) by the classic tyre wholesalers who we do not sell through. So beware of imitations!

All Blockley tyres are made with new moulds and tooling and a high level of quality control, resulting in a product of unsurpassed quality, roundness and conformity.

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