I currently have the Rival component group on my bike and I was wondering how much weight I could drop by going to a lighter (and thus more expensive) groupo? How does Rival compare to Red and Force. The reason I ask is because I have checked out Sram's web site and yet it seems a little tough to directly compare numbers.
Another thought would be can I swap out certain Rival parts for lighter Red or Force parts?
I appreciate any information you can provide - thank you.
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