Now, I can't be bothered wading through all that Civil Service speak on these links, but can someone clear something up for me? If a 17 year old (or someone of any age) were to pass the test on a 125 would he or she then be able to ride a bike of any capacity after a given period of time, or do the various classes have to be tested before they let you loose on them? BTW, I'm very skeptical about the benefits of tougher testing. 20 years as an ADI during a period when the driving test changed out of all recognition convinced me that teaching and testing inexperienced drivers to a standard above a certain level has had unintended consequences of a negative nature.