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Roadbike Rider
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Discussion Starter · #1 ·
What would be the weight savings going from a 7700 gruppo to a 7900. I'm looking at a full gruppo without hubs.

It's 193 grams less in going from 7800 to 7900 (1977 gms vs 2170 gms), but I don't know the difference between the 7700 and the 7800
 

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Roadbike Rider
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Discussion Starter · #3 ·
A Cliff bar is 68 gms plus wrapper so by upgrading from 7700 to 7900 I could probably carry 5 Cliff bars. Lets see what the answer is
 

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Roadbike Rider
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Discussion Starter · #5 ·
Answer my own post

I figured it out from the weight weenies site. If I didn't make any mistakes or omissions a group-set without hubs, using a 53/39 chain-set and a 12-25 cassette, drops from 2440 gms to 1977 gms. That's a savings of 463 gms, so call it 1 pound.

I'm sure I would notice a lighter feel to the bike
 
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