Triumph Bonneville Limited Edition Silver Jubilee

1977 Triumph 744cc T140 ‘Silver Jubilee’ Bonneville The final phase of the Triumph twin’s development began in 1972 with the first appearance of the new 750cc version of the Bonneville, the increase in bore size necessitating a new crankcase to accommodate the larger barrels. Other improvements included a new ten-stud cylinder head, triplex primary chain, […]