By age 41 he had held twelve national titles including tandem sprints, with Dennis Horn.

[2][5] Sibbit rode on the front of the tandem; Ernest Chambers was his stoker for five of the national championship victories.

White (Rover CC) in 1924, Ernest Higgins (Manchester Wheelers) in 1931 and Dennis Horn (Norwich ABC) in 1932.

[2] From 1922, Sibbit represented Britain in world championships in England, Denmark, Belgium, Italy, Switzerland and Germany.

[6] Sibbit worked for Ford during the Second World War and resumed making hand-made cycles from 1946 until his death in November 1950 at age 55.