WLDR "Daytona" tanks 1937-1940 WR "Daytona" tanks 1941-1946 WR "Daytona" tanks 1949-1950 WLDR "Daytona" oil tank 1937-1940 WR "Daytona" oil tank 1941-1952 WR flat track narrow tanks WR Narrow clutch WR Chrome Moly frame WR TT type seat WR Dirt track type seat WR chin pad WR pillion pad