Campagnolo CS-002 8 speed cassette spacer ring

thingiverse

Cassette spacer ring for 8-speed hubs Keeping old bikes alive with parts that are no longer available (NLA) This has been tested for fit over cassette, but NOT for thickness. Printing methods can vary the thickness and should be adjusted by the user. Likewise, I can't vouch for the compressiveness of the chosen print plastic. It may take some tweaking to get the proper fit and performance for accurate gear shifting. I've noticed differences in shifting behavior with original Campy spacers. Only on the third or forth disassembly, reassembly, and 50NM (36.9ft.lbs.) torque on the lock ring did the shifting work perfect. My first 200+ miles with my 3D printed g-spring carrier (for the rear) demonstrated delayed shifting coming one gear at a time from the 26 down to the 13. It would always take a few more rev of the crank or a slight bump of the thumb trigger. BUT after a full hub rebuild I reassembled the cassette and everything shifted click for gear up and down. I'm certain that campy's original spacers are not ABS or PLA and this can be problematic until the thickness is dialed in. The design is very simple the recesses I put in are for authenticity but not required. If you want to cook your own spacers, the measured dimensions are as follows: id 1.39" od 1.71" thickness 0.1265" It may take a few different prints and test runs to learn what works correctly. Please copy me on you your results if you cook this and get it right. I'd love to know what material, what printer, type of platform (tape on aluminum, glass, etc..) and what thicknesses you ran.