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my 840 pairs with my dura 9200 power meter but reads 0. power meter works fine when paired with e tube

Jawagp 4 months ago

my 840 reads 0 for power

0 1530214 4 months ago

You need to follow the specific instructions for getting the power meter to work with the 840, click on step 2 setting up a device that receives power meter data:

https://bike.shimano.com/en-EU/technologies/component/details/power-meter/setting.html