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  1. #1
    mtbr member
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    Little help with IDing compatibilities ?

    My current bike is using

    Suntour XCT V2 crankset
    Shimano BB-UN26 Square taper Bottom Bracket ((68 X 117.6 MM))
    Shimano HG 30 cassette (8 speed)
    SL- M310 shifter
    Alivio De.Ra.


    Im considering going to 1/9 or 1/10 Im in no rush and may wait for part failure to even bother , + Im still learning my riding habits.... but I will be keeping my eye out for deals online or CL in case something too good to pass up appears. Im just having a difficult time understanding the sizes I should be seeking for cranksets.

    For example I see these two ads on CL.

    SRAM Red Crank crankset 175mm 130BCD 53/39 BB30

    Race Face Atlas Freeride crankset. NEW w/ 36t & e.13

    Is just any BB going to be ok ? Is the Crankset/BB pairing all that matters or is there physical limitations inherent to frames themselves ?

  2. #2
    mtbr member
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    The SRAM crankset you link to is a road bike crank.
    You will need a threaded BB to fit your frame - not BB30, nothing PF.
    Bottom Bracket Standards - a guide to BB30, PF30, and Outboard Bearing compatibility

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