And a variation of this is that when climbing steep hills, strong winds are always headwinds, never following.
On the SRAM gear ratio percentage question Chess, they are sometimes expressed at percentages above or below a direct drive onto the hub as negative or positive values. In the case you mention it's likely they refer to a situation where 100% is direct drive and those figures reflect the amounts below or above
I can't see any reference to percentages in SRAM's technical documents on their site, so can you point me to where you've seen these?
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