I did not tape around the hole but used a Stanley to create a clean cut – not issues here?
I did ‘Stanley’ a small cross cut but initially left the flaps(?) of tape on. I guess air was escaping from between these bits and the rubber base of the valve stem. OK, my solution was perhaps a bit overkill, but it has worked. Well, I say worked, the tyres were still fully inflated this morning (10 hours later)….hopefully they still will be when I get home from work.
Stick to Mavic in future, much more professional
Yes, I agree that Mavic’s UST rims are generally less faff to set up. However, this was part of my DIY blingy wheelbuild…White Flow rims on 2nd hand gold CK hubs. Only the 2nd set of wheels I’ve built. Going to batter them on tomorrow’s ride to test the build. Gulp.
I await flaming for having tarty wheels.