Thanks heaps for all your suggestions, I tried everything indoors with no luck, then headed out to local bike shop for any clues, after pedalling no more than 150 metres the bike computer showed readings as they should be, all the power spikes you’d expect from each type of effort, not sure why Zwift via the Kickr and from the Bolt indoors were all showing half or less than half but I don’t care, their sole purpose is power training outdoors, so I’m abs stoked.
Once again really appreciate your efforts, and if you’re ever 30km due south of Brisbane , I’ll make you the best cup of coffee in the Southern Hemisphere
Cheers