Went with Pedal Cover in the end.
Couple of things that were raised to me by various insurers on the phone:
Some companies older policies covered bikes for unlimited value but now many have a £500/1000 limit unless specified – advisors reckon many folk don’t really fully check it after year 1 so just assume they still have the same level of cover if they auto renew.
Some companies also only cover up to £3/4/5K for entire garage contents so if you have a few bikes, a mower, strimmer, washer, drills, tools etc you might be well short. Again advisors reckon that some folk never check that, particularly if they auto renew.
Just FYI, might help someone.