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Discussion Starter · #1 ·
So I wanted to Upgrade my drivetrain on my Marlin 5. I want to use the Shimano zee derailleur, Shimano XT CS-M771 10 Speed Cassette, Along with the zee 10 speed shifter. But I was wondering what dimensions of the bottom bracket are so I can replace the cranks.
 

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Why, not sure what you have but if you want to go to a 1 by system unless you have a riveted chain ring you don't have to replace the cranks. If you replaced them with Shimano cranks ,the bottom bracket that you have would most likely be useable . A lot of crank sets come with a bottom bracket ,plus whatever spacers you would need.
 

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Discussion Starter · #3 ·
Why, not sure what you have but if you want to go to a 1 by system unless you have a riveted chain ring you don't have to replace the cranks. If you replaced them with Shimano cranks ,the bottom bracket that you have would most likely be useable . A lot of crank sets come with a bottom bracket ,plus whatever spacers you would need.
Yes the crank set is a riveted one so I would need new ones.
 
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