Shame about the wavy design, i missed that detail in the first page photo.
Bit of a let down as i would have much preferred a straight box rim design with bit more classic look.

Minimum tire width
 

So, the new Open Pro rim has an internal width. According to Mavic's recommendation for tire widths, the minimum tire width that should be used with this rim is 28 mm (and a maximum of 52 mm).

I'm not sure this is really a replacement for the original Open Pro.

Mavic's tire width chart:

http://engineerstalk.mavic.com/wp-co.../2015/09/7.png

Knew I was saving my black Record hubs for something...

Yeah, $170 a rim is pricey. But in weight/appearance/braking/tubeless capability these are state o' the art in alloy rims.

Nice to see Mavic back in the game.

Might be interested in some non-exalith ones. ~$70 sounds reasonable.

I really wish that chart were revisited. It's clearly outdated based on the thousands of people using 23-25mm tires on rims with much wider internal widths.

Yeah, I've been pondering this lately. The Mavic chart seems to copy the ETRTO recommendations:

http://slowtwitch.com/images/glinks/...TOSchwalbe.jpg

But the ETRTO rim specs. are fairly loose (literally - there is a lot of wiggle room for the tire bead inside the rim), and the recommendations are probably quite conservative. With modern tubeless and tubeless-ready rims, there is a much tighter fit between rim and bead, so the rim has a much firmer grip on the tire.

For example, HED Jet Plus wheels are tubeless-ready, and have a distinct "shelf" that holds the tire bead firmly. Although the rims have an inner width of 20.5mm (outer width 25mm), they specify that tires must be at least 22 mm wide (although they also note that a 22 mm labelled tire on a Plus rim will expand out to closer to 25 mm).

Finally saw a picture that shows the inside wavy surface. Has the rim been hydro-formed?

Must be an interesting extrusion..make that wavy gig. Wish they spent the $ on an OC rim. Hope the wedge and eyelet things fixed..still gonna pass tho.

How they say they do the wavy thing

Too bad no one else makes a high quality 23mm wide box section rim. ;)

https://stuffdavelikes.files.wordpre...203-223220.jpg

That is 70 Euros/rim.

Look like they have a really thick extrusion and then just machine away material until it is wavy.

The new rim appears to be drafted from the Ksyrium Elite wheelset. This seems like a low risk business decision. Good for Mavic.

And a proven design. Also used on Crossmax mountain wheelsets. Put extra material around the nipple for strength and shave it away elsewhere to lose weight.

imma get me some. was considering carbon just because the al rim innovation seems to have gone stagnant and altho there are plenty of choices, nothing to really differentiate them. challenge was finding 32h carbon, but screw that. i'll take exalith

From my buddy's buddy, Chad, at Mavic:

We are very proud of this new rim and it is the result of hard work internally to offer a update on an iconic product that has been 100% redeveloped from the ground up. There are some comments that this is simply a Ksyrium rim adapted to make an Open Pro ... I assure you that is not the case.

http://weightweenies.starbike.com/fo...rt=30#p1300663