cheers guys – phew sounds like a commonish problem then, cant say as ive noticed it before and usually ride in winter though admittedely it doesnt very often get down to -7
im running 1×10 so not the front mech, and defo not indexing, the gears were running fine really in general.. id defo say the chain is plausable though as it did seem to happen on 1 full revolution of the drive train…
suppose it could be anything though, even frozen ish rear mech, or something similar!
glad to know its not just me, never had this type of noise/click and with it coming mid ride at such a low temp i kinda thought it must be linked to the extreme cold