GreenPlease wrote:
I would go with Zipp because they've optimized their tires and their rims together. The tire is a very important piece of the aerodynamic puzzle fyi. Bontrager did this too but, IMO, the R4 Aero just isn't up to snuff: fragile and not fast enough to justify being fragile. Also, the Zipp has a better braking surface and better brake pads. Bontrager recently did something to the brake track of their rims (some sort of a texture)
but the only "approved" pads are cork and those are really sub-par.
In terms of "strength" both are very strong but I will say that I saw something on the destructive testing of Bontrager's OCLV rims that was remarkable. I can't find it now but, long story short, they broke multiple spokes and even the test apparatus long before breaking the OCLV rim. Competing carbon rims failed within the first hour as did aluminum rims but the OCLV rim took a day or so before it failed. It was really pretty remarkable.
Source: former owner of a pair of Aeolus 7 D3s and a 303/808FC set. Now I'm on HED
Jet 6/Disc and don't see myself changing: nothing brakes as well as aluminum.
Edit: I just noticed you're looking at tubulars. Again, I'd still stick with Zipp.
First, approved pads now include Swissstop black pads for carbon. These worked really well for me in Lake Placid.
Second Jet 6 and a disc is very hard to beat.
A false humanity is used to impose its opposite, by people whose cruelty is equalled only by their arrogance