What sum Points 250cc clas, rank 13th, later 1955?
Year Class Team Points Rank Wins
Dave Chadwick
15892903
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2-15892903-2
Motorcycle Grand Prix results
Motorcycle Grand Prix results
1955 250cc RD Special 2 13th 0
1956 125cc REF 2 16th 0
1957 125cc MV Agusta 3 9th 0
1957 250cc MV Agusta 7 8th 0
1957 350cc Norton 2 14th 0
1958 125cc Ducati 14 5th 0
1958 250cc MV Agusta 4 10th 0
1958 350cc Norton 13 4th 0
1958 500cc Norton 3 15th 0
1959 250cc MV Agusta 4 11th 0
1959 350cc Norton 1 16th 0
SELECT SUM Points FROM table WHERE Class = 250cc AND Rank = 13th AND Year > 1955
250cc 13th 1955