I was looking up old Shimano tech docs and the original Dura-Ace 7400 group weighed way more than I thought

Lucas Ward · 2026-03-18T19:35:05.173458+00:00

I found a scanned 1985 spec sheet online that listed the complete 12-speed group at 2,850 grams. For some reason I always pictured those old parts as super light. It's wild how much things have changed, even with steel frames and all. Has anyone else come across a spec from back in the day that really surprised them?

ross.christopher6mo ago

Funny how our memory adds a weight weenie discount.

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wadec926mo ago

Remember seeing a vintage Campy ad claiming "featherweight." Thing was a boat anchor. @the_elizabeth is right about the marketing.

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thea6025mo ago

Nah, that stuff was legit light for its time compared to the steel options people actually rode.

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the_elizabeth6mo ago

Honestly makes you wonder how much was just marketing back then.

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