Hey Cowpoke,
Adam1user is quite right. If you contest it, it would be doubtful for you to have a win, even though back in the 'Good Ol Days' they would have wiped the ticket.
You have one option, if you don't have a traffic record. You can write a letter to the District Superintendent of Traffic asking that the ticket be waived and adding a lot of grovelling and remorse into the body of the letter. He might feel sorry for you. Maybe. But, if you're any more than 10 k/h over the limit and have ever had even one traffic offence, don't bother, because it's just going to cost you more money. In future, just keep the pedal off the metal.