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gear oil

  1. New To Bikes :) - - - Gear Oil

    Off-Road / Enduro
    Hi, I've recently bought a 125sx (First ever motorbike :) and LOVIG it!!!) and have ridden it for a few hours and want to change the gearbox oil. Im confused as to what Oil to stick in it though....some oils say synthetic, some are semi synthetic, some are fully synthetic and I don't know what...
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