Got either a grey 105 with 52/39, must date from mid 90's or a Bontrager with the same rings. this century anyway. 105 obviously not 10 speed specific but been fine for me. No idea about Bontrager.
Both have wear but both have been working fine on my 10 speed system with a new chain. I guess 20 quid plus postage what ever that might be.
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