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My 2nd 3rd and 4th gears all work but it won't shift into 1st 5th or 6th. Even after my gear cables and shifters were replaced with new ones.
On my mountain bike all the gears work except for 1st and 6th and i tried adjusting the derailleur screws but that doesn`t work
Is silicone spray with wd 40 safe to use on road bike cranks?