Posted here yesterday about a Sunrace derailleur hanger extender that didn't line up properly with the mounting point on my 1970s Koga-Miyata Gent's Touring.

Advice was to buy a Wolftooth Roadlink, which I did so. However, the Roadlink doesn't align with the derailleur hanger either. In fact, it's perhaps even further out than the cheapo Sunrace one!

Do I just have a weird old hanger style that is incompatible with modern derailleur components?

I'm building up a 1×10 drivetrain and am trying to get an Ultegra 6600 10 speed RD to work with a 11-36T Deore cassette so what would my options be? Do I even need an extender for the Ultegra to find the largest sprocket? The front chainring is a 42T

by Red_Peter

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