Do it yourself
Frequently asked questions about cars and motorcycles

How to Replace the Gear Oil in a KTM SX 125

Model: Ktm Sx 125
Part: Transmission fluid

Video tutorial

Today, discover the guide on how to replace the transmission oil while performing the routine maintenance service on the KTM SX 125 enduro bike. First, place your bike on a stand and start unscrewing the oil drain bolt located under the engine, allowing it to drain into a container for about ten minutes; then clean the drain plug of any metallic residues, as shown in the video.

At this point, unscrew the filler cap and top up with new gear oil, pouring in the quantity specified in the owner's manual!


Updated on 8 July 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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