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Would the SRAM RED/Force AXS 107 BCD Power Meter Spider fit my SRAM Force 43/30 crankset?

Great question. Yes, but you would have to change your chainrings to make it fit. The SRAM RED/Force AXS 107 BCD Power Meter Spider would bolt up to your crank arms successfully, however the problem is with the BCD. Your 43/30 chainrings use a 94 BCD and the power meter spider uses a 107 BCD. So you would have to install new chainrings that fit a 107 BCD. The smallest chaining combination that uses a 107 BCD is the SRAM AXS 107 BCD 46/33 Chainrings. So you could make it work, but you would have to move from 43/30 to 46/33 chainrings.

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