165 HR 400 Steel belted radial with correct diameter and awesome handling and ride characteristics. These are the best 165R400 tyres ever made, and you will not believe the improvement in handling these period correct Blockleys will result in. A size used for many Lancias (Aurellia , Flaminia  Aprillia) , Alfa Romeo 1900 , Citroen Traction Avant and many others. 

This Blockley 165 HR 400 is a modern designed full size steel belted Radial tyre, with a good speed rating and period correct tread pattern, designed in house. 

Blockley produced this 165HR400 tyre so there could be a proper speed rated and infinitely better handling tyre than what has been available, because something much more wholesome has been needed for some decades. Having a Lancia Flaminia Zagato myself pushed me to commit to this unusual size, which required much specialist tooling. Since starting this project Pirelli also have produced this size with the same speed rating as us, but with their diameter too small! These Blockleys will be the best 165R400 you have ever driven on and come with the usual Blockley radial tyre guarantee to scrub them in and if you are not overjoyed in the next 1000 miles we will offer a full refund. Anyone previously using a 165R400 tyre size is in for a nice surprise!

Please note that as per original period specification this 165HR400 tyre is a tube type, just as the 165R400 size was in period, so you will need to fit a correct fitting inner tube - see below.

Perfect for Lancia Aurelia, Lancia Flaminia , Lancia Aprillia

Alfa Romeo 1900 , 2000 , 2600

Citroen Traction Avant,

Citroen ID, DS 19 (AR)

Ferrari 250 option

Peugeot Darl'mat

Fiat 8V

Salmson 2300S

Frazer Nash Targa Florio - radial option.