SRAM Tech Manuals & Spectro E12 Gear Hub
- A check of the SRAM web site shows that they have tech manuals for
their gear hubs available back to 1999.
For those who are curious, or have a need for the info, the 1999
manual includes information on the Spectro E12 twelve speed hub,
apparently the last to do so.
The hub was huge, almost as large as the NuVinci hub. Maximum
diameter is listed as 143mm. No weight is listed in the tech manual.
I have never found a listed cost for this hub but suspect it was
expensive. Considering the size and weight I wonder if the
introduction of the much lighter and greater gear range Rohloff hub
was the reason for stopping production of it.