I need new chainrings due to slipping chain and decided to replace them. I currently have an Ultegra R8000 Chainset and don't want to replace the crank arms (as it is really expensive). Ultegra is almost 50% more expensive for the rings. Will the Shimano 105 R7000 chainrings fit this crank as I have heard different opinions on this and wanted to get some certainty from someone? Many thanks

  • The issue is that R7000, R8000 and R9000 cranks all have different 'three dimensional' profiles to the crank spider arms which is continued into the chainrings. Different series rings and cranks definitely do not match, and it is unclear if there is clearance issues which would prevent rings from one series being installed on a different series crank. – Argenti Apparatus Jul 29 at 17:41

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