ct_rider Posted October 11, 2021 Share Hi Hubbers, First time wanting to purchase a power meter, looking at purchasing a single sided, left arm Sram GXP Power Meter. Is the above enough, or do you require the spindle as well? Link to comment Share on other sites More sharing options...
Jbr Posted October 11, 2021 Share you normally just get the crank arm that fits on the spindle you currently have. Never really understood why they sell spindles ? Link to comment Share on other sites More sharing options...
warick_wrx Posted October 11, 2021 Share I would think the spindles are designed for crank sets where the spindle is fixed to the non drive side, these are normally not removable. Edited October 11, 2021 by warick_wrx Jbr 1 Link to comment Share on other sites More sharing options...
JulienR Posted October 11, 2021 Share Yes, you buy just the arm. Just check whether its gxp or dub as the crank arms are different And check the length of the crankarm Link to comment Share on other sites More sharing options...
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