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Model: Derbi Terra 125
Part:

In today's video tutorial, you will find instructions for removing and replacing the chain, sprocket, and gear on a Derbi Terra 125. First, remove the cover of the sprocket by unscrewing the fixing screws; then, use something sharp, like a flat screwdriver, to detach the chain from its link, as shown in the video. Once the chain is removed, unscrew the nut of the sprocket to take it off; then, remove the rear wheel by unscrewing the central bolt, and take off the gear by removing the fixing screws!

Updated on 10 April 2026 by ScegliAuto

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by ScegliAuto

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