Do other straps work with it?
With the 920xt? I think so, you could try pairing them with one of your Garmins to see.
I don't use them. I just took the batteries out of them yesterday so they were in mind. Just thought if you were having trouble with a strap you could try one of my PT ones.
Ah, I see. Not needed (but thanks for the offer) as the old Garmin HRM1 straps from my Edge 705 and Forerunner 110 work fine with the 920xt.
@hippy started
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With the 920xt? I think so, you could try pairing them with one of your Garmins to see.