If the chain is worn out.
Fixed gear bike chain slipping.
Note which gear these are on so you can place the chain back in the right place.
Hub or fixed gear bike.
A chain that keeps falling off is either too loose in the case of a hub gear or fixed gear bike or the derailleurs are badly adjusted and move the chain right off the cogs when you change gears.
Straightening a bent derailleur hanger how.
To tighten a loose chain on a hub or fixed gear bike first use a wrench to loosen the axle nuts on the rear wheel.
To fix a slipped bike chain first turn your bike upside down as this will make it a lot easier to reattach the chain.
Bicycle gear slips will cause inconsistencies while riding as well as slow down a racer.
Look over the chain for excess wear or bent links.
And explain what needs to be done to fix them.
Press your shifter once.
Place your bike in a stand.
Once your bike is upside down look at the derailleurs which are the small machines on the front and back gears that move the chain.
How to fix bike chain skipping slipping jumping gears i show the most common causes for chains that skip slip jump gears while pedaling auto shifting phantom shifting derailleur especially while under torque like climbing up a hill or standing on the pedals.
I show the most common causes for chains that skip slip jump gears while pedaling auto shifting phantom shifting derailleur especially while under torqu.
It is important that you take the time to inspect the condition of your gears and chain before any ride.
They will also lead to one using more energy to cycle especially if the damaged gears are the heavier ones.