5.50 x 18 Blockley tyre with a tread pattern that we call "A6C". A high quality, excellent speed rated tyre with a tread pattern looking like that fitted to cars dating from the latter part of the 1930's on to the 1950's. Note that Blockley also produce an alternative 5.50x18 tyre with a triple stud tread pattern listed elsewhere on the Blockley website.

Another superb quality 550 x 18 Blockley tyre in the Blockley range (we also make a 550x18 with the 3 stud pattern). Designed by us to be visually correct for cars dating from circa mid 1930's to mid 1950's. Ideal for cars such as Alfa Romeo 6C 2500, Derby Bentley, Pre and post war SS Jaguar, some Bugatti T57 and many Delage / Delahaye and so on, although some Derby Bentleys, Bugatti 57 and SS cars were supplied new with the other 3 stud tread pattern 5.50x18 that we also produce. If you require any advice on which of the two types of tread pattern may be better for your car, feel free to contact us.

Please note the 3 stud pattern tyre in this size is at the same list price. Initially this A6C tyre cost much more, but as we sold enough to recoup the mould and tooling costs, we were able to reduce the price. What appear the low list price of Blockley tyres is only because we sell direct to the end user and garages, and not through the Classic car tyre wholesalers.

All Blockley Cross (Bias) ply tyres are made to fit the original wheel rim widths, something other manufacturers have forgotten about over time. In addition these 550x18 tyres 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.  We wanted a suitable mid 1930's - 50's look. The compounding of all our cross (Bias) ply tyres conform to FIA Appendix K which uses Dunlop 204 (not particularly soft) compound as its reference hardness. 

All Blockley tyres are made using new made moulds and tooling to the highest level of quality control, resulting in a product of unsurpassed quality, roundness and conformity.

And finally, dont forget the inner tubes we produce for these tyres. Any tube marked with the 550x18 size is too large because it is for larger tyres but they list them for many tyre sizes! The Blockley tyre is the only correctly dimensioned inner tube, is thick walled and made from the best material butyl - we also make it with a metal stem version as all inner tubes prewar had metal stems.