Brand new BSA FLIP CAP LID FOR PETROL TANK. Are you restoring your BSA bike and are looking for this rare to find petrol tank cap. Then your wait ends here, grab this reay to install cap. The above shown cap is made from steel and is neatly chrome plated & silver painted. This can be used on BSA A65 A50 GOLDSTAR bikes and others with 2.5" flip type petrol fuel cap system. Please refer to the pictures above for exact dimensions. These can also be fitted on other british bikes too.