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Old 02-25-10, 10:01 PM
Sixty Fiver
Bicycle Repair Man !!!
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Originally Posted by old's'cool View Post
I've never been interested in owning/riding a planetary hub since for me the limited range/large steps and loss of efficiency compared to derailleurs are not acceptable compromises.
The SA AW is considered to be one of the most efficient drives of any type with a 97% efficiency... because of cross chaining and their susceptibility to contamination a derailer system can lose efficiency very quickly.

This only speaks to the drive's efficiency... a wider gearing range can make a rider more efficient even if the drive is not.
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