With that in mind, one must not only be capable of understanding a component's numbers, but whether they belong or not.And there might be clues to help determine even that.Trusting the information of a single component, when determining a bicycle's vintage, is not a good idea.A single component might be of the same model but of very different vintages.Above: the Record side-pull brake, from 1968, was lightyears ahead of everything else on the market at the time for stopping power, and were the only side-pulls which reliably stayed centered.Components can, and will, offer easy to find accurate and inaccurate vintage determining clues, and our Benotto example is no exception to the rule.As proper factory documentation is very limited, the following charts are a constant work in progress; they have been compiled by examining numerous Raleigh frames from each period, component date codes, decal schemes, color availabilities per year; and - occasionally - official papers. Nevertheless, please put your mind at ease - these serial charts have been checked, re-checked, and are as accurate as I can provide at their time of publication. Keep in mind that these charts are incomplete, and there is a reasonably wide margin of error between serial cutoff dates.
This would suggest that every component, fitted to the bicycle, must be examined, researched and then considered for its value in determining actual overall vintage of the bicycle, itself. Though, indirectly, this information can be used for vintage determining purposes, the window defined is close to useless.Chain slack was taken up by ratcheting the rear axle forwards or backwards in the toothed droupout. Above, left to right: Record 1963, Gran Sport 1955, Gran Sport 1952. Above (3 fotos): In 1983 Tullio Campagnolo died, and the 50th Anniversary Group was released.The parallelogram which revolutionized gear changing. Above (4 fotos): in 1987 Cinelli offered a special edition, called the Golden Black, featuring extensively re-worked Super Record components.Above is the Chorus long cage model, 1993, featuring a swivelable parallogram with A and B positions for close- or wide-ratio blocks. Note also that the parallelogram now runs parallel to the chainstay, unlike the design from the Gran Sport to the C Record.This allows the cage to follow the gradient of the block as it shifts up and down. block, featuring light alloy cogs and body parts, was ridiculously expensive.