A reason you shouldn't use it on gravel roads is that the fairing is not sealed at the spoke holes.
It will collect dust, mud, tiny rocks, etc.
The carbon fairing might get damaged, but it would have to take a pretty good hit.
Also, I'd imagine the fairings provide more surface area for mud to stick... adding to the rotational weight.

Although I think the FLO guys have said the FLO 30's are not built for gravel, I have used them without issue... so I image the 60's would hold up just as well.

There are a few reasons.

1. The wheel wasn't designed/built for that type of use. We are working on a full gravel line right now. I'd say within the next year or so all of our wheels will be capable of being used on the road and on gravel.

2. The openings in the fairing would collect a lot of dirt and debris which would make an absolute mess of the wheel.

I hope that makes sense.

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Chris Thornham
Co-Founder And Previous Owner Of FLO Cycling

Zip 404 or maybe it was Reynolds can recall, is very close to same structure yet they have no issues on Gravel. That’s why I asked.

You guys are super late to the party on this (and disc brakes).

I’m in no rush this season so I’ll be watching and waiting.

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The curious task of economics is to demonstrate to men how little they really know about what they imagine they can design.

Neither Zipp nor Reynolds have a structure that is similar to Flo hybrid carbon/aluminum rims.

What brand is it that had carbon over aluminum. I saw a few of them at Gravel race. Just can’t remember. I know Reynolds and Zipps were there. Also saw Flo60 which prompted my inquiry.

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The curious task of economics is to demonstrate to men how little they really know about what they imagine they can design.

But I need new gravel wheels now and I love my Flo wheels!!!

Hurry up guys... pretty please!

lol

While I wouldn't use them on a pure "gravel bike", anywhere you want to go on a road bike should be ZERO issue for the Flo wheels. They are a pretty durable wheelset and I had zero issues with the fairing. I think I got a little rock on their once, but I just rode it until it was time for new tires and then shook it out of the valve hole (and it made less noise than when I dropped a valve extender in there).

Yes they are road bike wheels, but they aren't particularly fragile.

I promise that we are moving as quickly as we can. Development just takes a lot of time.

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Chris Thornham
Co-Founder And Previous Owner Of FLO Cycling

HED.

I know Chris. I’m just messing with you. You guys put out a great product and your service is second to none. Let me know if you need a fat, I mean Clydesdale, betatester! Signed up for the inaugural Michigan Coast 2 Coast, Barry Roubaix, and a bunch of awesome gravel races. I’ll be first in line when you do come out with ‘em!