Thanks for all the suggestions!
I know going tubeless is probably the way to go eventually I just don’t have the time right now, we’re expecting our second child in July and I’m likely to only be out a couple of times before then, a trip to Arran to ride the Grinder route in a couple of weeks being the reason for trying to fit the Nano’s.
I’ll look into the IRC levers, thanks @charliem.
@scotroutes it’s a strip of Velox tape.
A mate has just bought some Gravelking SK’s to run tubed on some Alexrims so I’ll see how he gets on with them (not a direct comparison I know but I’ve got the same rims on the commuter so might be able to draw some vague conclusions)