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Fenix500

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  1. Sherpa T / Alpina Motor How Interchangeable?

    Fenix500 replied to Fenix500's topic in Bultaco
    Thanks for the response guys. Woody - I did get a larger front counter sprocket. I'll start there.
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  3. Sherpa T / Alpina Motor How Interchangeable?

    Fenix500 posted a topic in Bultaco
    Hey everyone. Brand new here and picked up my first Bultaco. It runs and is about 75% original, however knowing this is a trial forum, I am looking to go the other way. I would like to change the gearing some to make it more of a "desert sled", less low-geared trials. I know the 71 Alpina is basically the same bike with higher gearing. Can anyone tell me how interchangeable the gearbox is? Any input would be appreciated. Thanks! Fenix

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