How To Adjust Gears On A 21 Speed Bike. To do this shift the largest rear cog and then move on the the smallest. By changing the combination of these gears you can make it more or less difficult to pedal.
Bikes have one two or three front chainrings gears. Being environment-friendly it is very helpful for the body postures. The component your pedals are attached to has several parts with chainrings sprockets being a key component in shifting.
By changing the combination of these gears you can make it more or less difficult to pedal.
21-speed bike gears explained. Pulling it backward toward you will shift the bicycle down into a lower gear. It has Shimano 7 speed twist gears. Repeat this process on the left side to control the gears located toward the front of the bike.
