How long is the rule of thumb for it? 2500k?
Much less, IME. Depends on how much front shifting you do, but I've been getting maybe half that.
Ok, better pack the charger then. I now have Compact rings on the bike so FD use should be a bit less.
@hippy started
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Much less, IME.
Depends on how much front shifting you do, but I've been getting maybe half that.