Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions
  1. Motorcycles
    2. :
  2. Derbi
    3. : Cross City 125

How to Replace the Crankshaft Sprocket on the Derbi Cross City 125

Model: Derbi Cross City 125

Video tutorial

In this guide, you will learn how to dismantle and replace the crankshaft or transmission sprocket on the Derbi Cross City 125 in simple and quick steps. First, remove the sprocket cover by unscrewing the screws; then remove the two fixing screws of the sprocket using a socket spanner, as shown in the video.

At this point, extract the sprocket by removing the chain; clean the area before fitting the new sprocket, checking the condition of the crankshaft oil seal. Then, apply the reverse procedure for reassembly!


Updated on 22 April 2026 by ScegliAuto


Related tutorials

How to Adjust the Idle on a Derbi Cross City?
How to Adjust the Idle on a Derbi Cross City?
Cross City 125 To adjust the idle on a Derbi Cross City, use a flat-head screwdriver to turn a screw located on the side of the bike. This is found on the right sid…
ScegliAuto offers an extensive international collection of automotive tutorials available in 12 languages. Each guide combines instructional videos with original explanations written by experienced human editors, along with information about the car models covered.

How to Replace the Front Headlight Bulb on a Benelli Motobi 200 EVO?

In this tutorial, you will see how to replace the front headlight bulb on a Benelli Motobi 200 EVO, a very simple and quick operation. Before proceeding, ensure that the key is not inserted for safety. Start by positioning yourself in front of the headlight in question, then unscrew the two screws located at the bottom and separate it from the base. Next, disconnect the power connector, unclip the metal clip, and remove the old bulb from the housing. To install the replacement and reassemble everything, simply follow the reverse procedure.

Watch the video!


by ScegliAuto

More videos