Tachometer 12,000 rpm 4:1 replica Smiths Dimension Details: Bezel = 3 1/4 " (85 mm) Body = 3 1/8 " (80 mm) Depth = 3 1/5 (90 mm) Thread Size for cable = M18X1.5 with mounting bracket and 12 v bulbs for illuminaion. should fit many vintage Triumphs BSA Norton Matchless Bikes (confirm fitment at your end before buying) |