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  1. #1
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    Does Anyone know the BCD of the OEM Sram Specialized Stumpjumper crank?

    Thinking of going 1x10

    Below are my crankset specs

    CRANKSET
    Custom SRAM S-1250, 7050 alloy arms, 10-speed XC double, PF30 spindle, 15.5": 170mm, Others: 175mm
    CHAINRINGS
    38/24

  2. #2
    mtbr member
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    It should be 104mm and 64mm BCD.

  3. #3
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    Thanks!!! Im on 1x10 now!!! woot woot!!!

  4. #4
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    I'm doing the same thing with my Stumpjumper. Your crank was 2x10, correct? Did you need single speed bolts or bolt spacers? Or, did the original bolts suffice?

  5. #5
    Purulento
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    I have the same crankset. Just take out the the 2 original chainrings and put the new one in place of the 38t chainring. No different bolts needed. You won't even need to shorten the chain if you're using 11-36 cassete and a x9 10s medium cage deraileur (im my case)...

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