How to Adjust Your Ebike Derailleur

How to Adjust Your Ebike Derailleur

Whenever you're riding your ebike, and you notice that your gears are not changing smoothly, the issue could result from the derailleur. Most times, the derailleur is one of the e-bike adjustments to be done frequently. A derailleur that is out of alignment can cause shifting issues. Some riders may believe that a bike shop is the only solution when faced with a gear-shifting problem on an electric bike. However, you can resolve this problem and return the ebike to normal with a few straightforward tweaks. 

Typically, when you use the shifter while pedaling, the derailleur on the bike moves its chain from one gear to another. Whenever your ebike's cog or chain is dirty, it will affect its shifting correctly. Also, you need to adjust your derailleur if you hear noise from the ebike or the chains go off its freewheel cogs. The adjustment process is easy, and through this article, you will succeed in fixing it yourself.

What is an ebike Derailleur?

What is an ebike Derailleur?

The derailleur of an ebike is the control that enables you to shift gears as you ride. It's usually at the rear of the ebike's frame. A derailleur has a mounting bolt, and the other end has a movable arm that helps the bike chain. As you move the gear up or down, the derailleur will move the ebike's chain to the proper position.

For energetic riders who want to utilize their ebike's motor to the fullest potential, derailleur gears are a great option. The higher torque performance ebikes, the Commuter Electric Bike KBO Breeze, features derailleur gears rather than internal gears, enabling the engine to function at its maximum torque capacity.

The KBO's Shimano 7-Speed Derailleur lets you change gears effortlessly and adapt to various terrains. It's lightweight and easy to maintain or change.

How Do I Know I Need to Adjust my Derailleur?

You would know your ebike's derailleur needs to be adjusted when you hear a clicking noise. Also, you would notice that the gear moves to either below or above instead of the one you choose. When this happens, you should make the necessary corrections immediately.

How Do I Adjust My Derailleur?

When it comes to adjusting your derailleur, there are several ways to do so. To DIY, you should follow the below simple steps:

Step 1: Prepare your electric bike.

Before adjusting your derailleur,  you must prepare your ebike for the whole process. You would have to shut down your electric bike by pressing the power off button on your KBO bike. Then you proceed to remove its batteries, and this is for safety purposes. Afterward, get a cloth or smooth brush and clean dirt and other stains from it. Before you move to step 2, you will need a Philips screwdriver.

Step 2: Inspect the derailleur

Take a look at the derailleur, which is at the rear wheel. Check to determine if it sits exactly beneath the gear that the shift lever has selected. The chain should be on the largest when in first gear. The chain should be on the smallest in the seventh gear. You should take it to a professional service if the derailleur or the hanger is bent and doesn't hang directly under a specific piece of gear.

Step 3: Make the necessary adjustments.

The adjustment process depends on each situation. Some of these are below:

  • When the Chain Falls off the Freewheel

Your ebike's chain falling off the freewheel could result from the derailleur being too near or distant from the gears. You would have to locate and adjust the derailleur limit screw. If the chain happens to fall off the smallest cog, turn the crank forward and change to the seventh gear. Tighten the higher setscrew by turning it clockwise with a screwdriver. It would be best to continue pulling it until the smallest cog is directly below the chain on the upper pinch roller. Then you have to rotate the crank forward if the chain comes off the top gear. With your screwdriver, shift it into the first gear. Doing this tightens the lower limit screw as you turn it clockwise. It also lowers the derailleur to the flywheel. Lastly, turn the upper wheel and stop when the chain is in line with the bull gear. Change gears to check the alignment.

  • The Chain Jumps Cogs or noise occurs during the shifting of gears.

When this occurs, it indicates that the cable tension is too high. Turn the crank forward into the seventh to correct it. This process will shift the chain into a lesser gear and loosen the derailleur's barrel adjuster. Then, half-turn the barrel adjuster in a clockwise direction. Afterward, check to see if the gearshifts go effortlessly.

  • When the chain Climbs the gear too slowly

The slow movement could imply that the derailleur is excessively slack, and to fix this, you need to accelerate and move to the seventh gear. To set and adjust the derailleur, tighten the barrel. Then check to see if it functions smoothly once more.

  • When the gear outer is short

If the cables are old, there may be friction and sluggish shifting, or it may need repairs. Cable replacement for your equipment should be once a year.

How to Adjust Your Ebike Derailleur


Your derailleur in good working condition will have a safe and enjoyable ride, and once you follow these steps above, you can adjust your ebike's derailleur effectively. Shifting problems can also be brought on by other things. If the noise is still present, another problem is probably to blame, so you may need to look into other potential causes. 

Depending on how well your bike performs, broken cogs and chains or a gluey derailleur are all possible causes of the noise. To prevent a breakdown on a lengthy trip, you must check that every component of your bike is in excellent working order for your safety. All you need to adjust your ebike derailleur is a screwdriver. However, if you can't solve it, it's best to take it to your manufacturer, especially if it's within the KBO's warranty period.