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Mechanic question

  • 13-05-2021 8:36pm
    #1
    Registered Users Posts: 1,505 ✭✭✭ ballyharpat


    Sorry if I’m in the wrong place, I’m on the phone and can’t find the mechanic thread-

    I have a cannondale topstone 0 (aluminium), it currently has a grx crank with a 1.37 x24 threaded bottom bracket- I’m looking for a powermeter, and this one came up- Sram gxp shaft, 24mm on drive side, 22mm on non drive side, carbon cranks, 130 bcd.- would I be able to get a bottom bracket to fit ?
    Tia


Comments

  • Registered Users Posts: 152 ✭✭ bikedude


    You probably will need to buy a matching Sram bottom bracket to fit the cranks. I am almost sure they will have the option available to fit the treaded bottom bracket on the bike. https://www.sram.com/en/sram/models/bb-gxp-a1

    Or you can change the left arm on the GRX and get something like that

    https://www.sigmasports.com/item/Stages-Cycling/G3-Power-L-Shimano-GRX-RX810-Power-Meter/PDAX


  • Registered Users Posts: 4,929 ✭✭✭ nilhg


    Sorry if I’m in the wrong place, I’m on the phone and can’t find the mechanic thread-

    I have a cannondale topstone 0 (aluminium), it currently has a grx crank with a 1.37 x24 threaded bottom bracket- I’m looking for a powermeter, and this one came up- Sram gxp shaft, 24mm on drive side, 22mm on non drive side, carbon cranks, 130 bcd.- would I be able to get a bottom bracket to fit ?
    Tia

    With 130mm BCD you won't be able to fit chainrings to give you anything like the gearing you currently have, probably be stuck with 53/39 up front.

    I'm only after laying my hands on a Topstone, crank based PM looks the way to go.


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