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I sold some of them and bought others. I have a Compact set on the Tarmac, traded the TT set for some aero testing and I may still have the normal road double set. For the ultra bike I want low gears though so at least a Compact. I could just use the rings off the Tarmac but I don't like having to make a bike unrideable to get another one going. it's not like they're gonna stop making 5-bolt 110 rings though is it?
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i've used 5800 rings on mines as well
Can buy the whole crankset for the same price as the last rings I bought..
https://www.ribblecycles.co.uk/shimano-105-5800-black-chainset-11-speed/
I need 165mm so that's that. The chainrings and BB are lesser known quantities. Probably GXP for standard BB shell and then chainrings, hmm... 4 or 5-bolt 110bcd?