Bora WTO

[mpulsiv]

Why don't you consider WTO 45 DB? It's 2-way fit, so you can run tubed or tubeless www.campagnolo.com/US/en/Wheels/bora_wto_45_disc_brake

I have been looking at those quite closely but am concerned about getting blown off the road when the crosswinds ramp up when a storm blows in from the ocean a couple of klicks away.

You are coming from 38 mm deep and if you think 7mm deeper is going to blow you around, you are delusional Keep in mind that WTO rim has modern rim profile.

Ha, yeah I hear you but since I’m already getting blown around, increasing rim depth at all seems a bit sketchy.

You are getting blown around not because of the depth but because or rim profile. To put this into perspective, Reynold 65mm wheels (teardrop rim profile) are more stable than outdated 35mm wheels.

[kevinw]

I think that the diamond shaped spokes on the WTOs help in crosswinds too.

[gwerziou]

That is great news then, because I have read elsewhere that hard crosswinds push primarily based on rim depth, regardless of rim profile.

[kgt]

What you read elsewhere is true.

[spdntrxi]

ofcourse the primary is depth... but profile is not to be ignored . Everything is conditional ofcourse.

[pdlpsher1]

I think that came from Hambini, which I believe to be true. He also says the best profile is the NACA profile which you are beginning to see them on the latest wheels (WTO, Bontrager, and Mavic).


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[bruno2000]

Correct me if I'm wrong but the latets Bontrager wheels are no NACA profile?
They seem to be more v-shaped like Bora One and Ultra.
Not round shaped like Mavic Cosmic and Bora WTO.

[pdlpsher1]

The latest Bontrager wheels are based on NACA.


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[hambini]

It's not possible to get a perfect NACA profile in carbon because the trailing edge would have to decay to a sharp point. The trailing edge needs to be rounded slightly - it is the limitation of current manufacturing methods.

I think that is why they say "based on NACA"

There does seem to be a trend towards more sharp aerofoil shapes, less width and less of a blunt toroid.

[mpulsiv]

Has someone published rim profile (e.g. cut open) of WTO rim besides what we know on paper?
Intetnal width = 19mm
External width = 26.5mm

[gwerziou]

“That is great news then, because I have read elsewhere that hard crosswinds push primarily based on rim depth, regardless of rim profile.”

What you read elsewhere is true.

In that case, back to my original post, has anyone heard about a WTO 35 in the pipeline?

Also, it seems that the WTO 45 DB is not yet available on starbike or bike24, where I get most of my campy parts.

[guyc]

Nothing about a 35mm and I’d be surprised if they bothered.

Having ridden both Bora 35’s and the newer 45’s I’d take the latter every time. I don’t think a 35mm offers enough aero benefit to make it a sensible offering alongside a 35mm.

It gets pretty windy here in the Uk and the 45’s are excellent.

[skyboy]

I have been looking at those quite closely but am concerned about getting blown off the road when the crosswinds ramp up when a storm blows in from the ocean a couple of klicks away.

You are coming from 38 mm deep and if you think 7mm deeper is going to blow you around, you are delusional Keep in mind that WTO rim has modern rim profile.

Ha, yeah I hear you but since I’m already getting blown around, increasing rim depth at all seems a bit sketchy.

You are getting blown around not because of the depth but because or rim profile. To put this into perspective, Reynold 65mm wheels (teardrop rim profile) are more stable than outdated 35mm wheels.

Are they more stable than the even newer Reynolds AR X wheels?

[gwerziou]

Starbike says about availability of the WTO 45 disc: the Bora WTOs will be available as discs as well, unfortunately there is no delivery date available at the moment. This can take a few weeks / months until they are sourceable.

[Imaking20]

You are coming from 38 mm deep and if you think 7mm deeper is going to blow you around, you are delusional Keep in mind that WTO rim has modern rim profile.

Ha, yeah I hear you but since I’m already getting blown around, increasing rim depth at all seems a bit sketchy.

You are getting blown around not because of the depth but because or rim profile. To put this into perspective, Reynold 65mm wheels (teardrop rim profile) are more stable than outdated 35mm wheels.

Are they more stable than the even newer Reynolds AR X wheels?

I'd venture a "yes". The Reynolds Aero profile is the most stable aero wheel I've ridden by a hefty margin. I now own a couple of the new Bontrager XXX setups and they're the closest I've come (and would rate the Bontrager braking higher). Just looking at the profile, I'd expect the WTO to behave similarly.