Why Does My Bike Change Gears On Its Own. A bike with 30 or more gears is not an indication of a machine designed to break the land speed record any more than a bike with only a single gear assuming similar ratios. Ever since I got my bike Surly Long Haul Trucker it has been prone to shifting on its own.
Take time to assess and even get professional help. It usually happens when Im on a hard gear and I suddenly power out of a full stop it pops into an easier gear and my foot drops from the pedal. If you are skipping gears and facing problems the indexing is to blame.
I like to mix motor and muscle in a manner that maxes out battery life.
Bent teeth or a bent cog can cause the chain to skip gears. Two gears in the front seven in the back. Why does my bicycle change gears on its own. Seems to only really do it going up a hill when it can catch you by suprise and foot.
