![]() ![]() The shifting was touted as being extrodinary, but in reality is was exactly the same as the NR. The new top plate was supposed to be some exotic material, not just aluminum and the black coating used on the parallelogram ends and background for the Camapgnolo script was something other than common anodizing anodized. But that didn't stop Campagnolo from claiming the SR as a huge improvement over the NR. Other than that, the parallelogram is exactly the same except for the new top and bottom plates but all the parts of a NR and SR are interchangeable, because except for the outer plate, that are the same. So if you don't count weight, the only performance advantage that this era SR rear derailleur is this the ability to utilize these two additional teeth. This in affect lowers the pulleys so the guide pulley is in a lower position and can utilize a larger rear cog. The pulleys are the same distance apart, however the upper pivot has been moved closer to the pivot. ![]() The top photo below is the outer cage of a NR and the lower the SR. ![]() This was done by re-working the outer cage. The reason is the Super Record (SR) Rear Derailleur was nothing more than a tweaked Nuovo Record rear derailleur designed to utilize a 28T cog over the Nuovo Record (NR) limit of 26t. A good definition of form over function is the Vintage Super Record (1974-1987) Rear derailleur. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |