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Model: Gasgas Xc 300

Watch this video for step-by-step instructions on removing and replacing the crankshaft oil seal (located behind the sprocket) on a Gasgas XC 300 enduro bike. First, remove the sprocket cover by unscrewing the fastening screws of the side bracket; then, take out the circlip using the appropriate pliers and remove the sprocket, disconnecting it from the chain as shown in the video. At this point, gently extract the oil seal, being careful not to damage the area of the crankcase; then insert the new oil seal and reassemble everything!

Updated on 7 May 2026 by ScegliAuto

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