The best quality for this 26x2 1/2 Beaded edge tire, produced by Blockley Tire Co. This tire size was also called 650x60x55 in the past and to be precise the imperial size of this tire in the past was called 26 x 2 1/2 for 2 1/4 rim. For interest there was also a tire size available in the period called 650x60 which had slightly different dimensions but this was fitted to a very different sized rim. This Blockley tire is built to original Dunlop factory specifications, with a "Twin Stud" pattern and constructed using new fabricated molds and associated tooling.