The new Mavic Open Pro UST.
- 18.6mm internal width (19mm claimed)
- 23.5 to 25.3mm deep due to that funky design.
- 430g weight (claimed) 425-435g real weight
- ERD - 593mm
- Pressure limit is 87 psi
- welded join
- single eyelets
- tubeless (UST) compatible and tubed clincher tyre compatible.
Mavic are making bold claims about this rim and I am inclined to believe them. There are issues with some tubeless tyres on some rims. It is somewhat annoying in fact. Kinlin rims and IRC tubeless tyres are my reference standard as I have no issues with mounting or inflating.
Mavic claim they are sorted the tubeless issues (although tyre manufactures have to conform) by improving the tolerances of the rims.
Mavic claim that you should use there rim strip with these rims. I will be doing some testing to find out if VAR tape will work fine.
Mavic also claim that there UST tubeless tyres are the best to use - they would Mavic do say other tyres will fit just fine and other brands of tubeless tyres will be fine.
So see through the warnings use common sense you will enjoy some fine looking rims.
As I test I will update. customer feedback on this rim is welcome.