I finally got my chaoyang tire today, waited about two months for it.
So while i was at it i had a look at the results of my little dust mods that i did last time, rode about 150km with it.
Where the mudguard is i stuck a bit of foam between the led strip and the rubber of the mudguard.
And i put some sticky velcro where the pedal hangers slide in.
Result, not as much dust inside
before the modification
After the modification
When i had the tire off the rim i took the advice from @buell47 and drilled the valve hole a bit bigger, the tire didn’t go properly onto the rim because the valve was too far out it already pinched the tire wall.
The chaoyang is definitely slimmer than the CST, it’s got a lot more clearance to the housing.
Couldn’t do much testing because it was getting dark and late so just did a few rounds around the block and i like it.