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MSA summit is at 800m

It make sense in Shimano hierarchy because XTR doesn't exist in the Linkglide family. There is only Deore and XT in linkglide. Also make sense that Linkglide XT Di2 use the shadow mount mountain hanger standard since Linkglide cassette are on the HG standard with 11t cog as the smallest cog. The CUES di2 commuting stuff is more intriguing and...