Bicycling Question, why are there are two types of Deore XT M772 rear derailleur

  • Thread starter Thread starter arianov
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arianov

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the SGS and GS? Why Deore XT M772-SGS rear derailleur have long REAR DERAILLEUR PLATE than the Deore XT M772-GS? What are the purpose of having long (SGS) and short (GS) rear derailleur plate? please help me guys...
 
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