Campagnolo CS-002 8 speed cassette spacer ring

thingiverse

Cassette Spacer Ring for 8-Speed Hubs Keeping classic bikes alive with parts that are no longer available can be a challenge. This spacer ring has been tested for fit over the cassette, but not for thickness. Printing methods can vary the thickness and should be adjusted by the user. The compressiveness of the chosen print plastic is also unknown, so it may take some tweaking to get the proper fit and performance for accurate gear shifting. The original Campy spacers show differences in shifting behavior after repeated disassembly and reassembly. Only after a third or fourth attempt with 50NM (36.9ft.lbs.) torque on the lock ring did the shifting work perfectly. A full hub rebuild was necessary to get my 3D printed g-spring carrier working properly, even after a full 200+ miles of testing. The cassette shifted click for gear up and down once reassembled. The design is simple, with recesses added for authenticity but not required. If you want to make your own spacers, the measured dimensions are as follows: ID: 1.39" OD: 1.71" Thickness: 0.1265" It may take several prints and test runs to learn what works correctly. If you try this project, please share your results with me. I'm interested in knowing which material, printer, platform (tape on aluminum, glass, etc.), and thicknesses you used to get it right.