Aside all the smaller changes, of which there were many, the significant change was to the suspension. And most notably the upgrade to hydraulic shock absorbers over friction dampers. This would have been the major factor in the specification from a "B" to a "C" model. As great as they are the Brampton forks were very outdated by then, and the factory would have been busy trying to improve on them, especially as most other makes were using telescopic forks. Although not as ridged and strong as the Girder forks, their action and behavior has proven itself pretty hard to beat, and still the norm to this day.