Triumph Big End Sizes + Bore and Stroke.

Triumph Tiger 100     (T100A)

Triumph Speed Twin  (5TA)             B/E Sizes..... 1".437 - 1".4375

Triumph Twenty One  (3TA)

350cc Bore and Stroke................. 58.25 x 65.5mm

498cc Bore and Stroke................. 69 x 65.5mm

Triumph Thunderbird  (6T)

Triumph Tiger  (T100, T110) - 1956 on

Triumph Speed Twin  (5T) - 1955/58 on                 B/E Sizes............... 1".6235 - 1".624

Triumph Bonneville  (T120) - 1959 on

Triumph Bonneville  (T140) (TR7) (TR65)

489cc  Bore and Stroke............................... 63 x 80mm

649cc  Bore and Stroke............................... 71 x 82mm

TR65  (650cc) Bore and Stroke...................... 76 x 71mm

750cc  Bore and Stroke............................... 76 x 82mm

Triumph Trident  (T150/T160)                             B/E Sizes............... 1".917 - 1".9175

741cc  Bore and Stroke............................... 67 x 70mm