In reply to AndyC:
Doesn’t make much sense to me but I’m running out of options. Plus yesterday tried rather undignified Standing fast back Pedal and got the click in line with pedal rotation so it’s in the drive not the wheel.
I took the free hub off an it looks fine. Replaced and the click is still there.
argh!!!!
looking at the rear mech, the jockey wheels are clean and clear, there is a clutch on the mech, new one on me on a road bike, but can’t see how that would impact. As it’s freewheel related it can’t be these.
only other thought is a faulty wheel bearing.
I’m stumped.
cheers all