Anyone run this combo? I'm thinking of going disc in the front on my fixed road frame (already do it on a 26" wheeled bike), but the cheaper cyclocross disc forks seem to be tank heavy and cheap cromo, the kind of which I've continually busted the steerer on. I'm a clyde too.

I was specifically thinking of the Surly 29er fork, for the burliness without extreme weight, but the suspension correctedness leaves me wondering if it will wildy augment the geometry of the bike I'm riding (Surly Steamroller). I'd probably run it with flat or riser bars, which will also augment my position at the same time and make it kind of hard to tell, but I wondered if anyone here was running the road frame rigid 29er fork combo.

No need to go 29'er. A 26" rigid fork will probably have enough clearance for a road wheel+tire, and the axle-crown length will be much closer to that of a road fork. The Kona project 2 fork is VERY popular, and I think they even have a CX version specifically for this purpose.

Also, Surly forks are ass-heavy. Don't look to them for saving weight. Here are some other options:

Carbon CX fork with disc mounts

The Kona P2

Dimension disc CX fork

Even the cheapest is less than a Surly fork, and weighs less than 1.5 lbs.

I use the dimension disc fork- even with the 1" steerer, it's held up pretty well for me.

I think that the kona folks have a butted cross disk fork, which might be the best combo of weight and durability.

how about:

https://www.nashbar.com/profile.cfm?c...eid=&pagename=

or

https://www.nashbar.com/profile.cfm?c...eid=&pagename=

the 29" fork will be waaaaaaaay too long. you'll f'up your geometry.
a cross fork will also be too a couple cms too long for the steamroller frame, so you'll raise the front end and slacken the HT angle a bit.

I'll slacken your head tube!

get a pace rc31 fork....

Lots of people love them, but I bent a Project Two in a short time on a commuter bike, so I'm avoiding that one, even though they look great.

Slackening the head tube angle a degree might be ok - winter bike in snow and slush and stuff.

And plastic, I mean, carbon, I don't know - I'm probably being stodgy, and I've never ridden a carbon fork, and I even have a carbon post, but I'm constantly suspicious of it. 225 lbs plus clothes and gear... on the other hand, I break metal parts plenty easy.

And the nashbar fork I was going to buy with the last coupon I had, but they spec the weight at 1300 grams - that seems insane, I have a Kona dirtjumping rigid fork that's insanely burly, and heavy, and it seems to be in the same weight ballpark.

I didn't care about weight until this bike - my first light one (<20 lbs) so I'm getting a bit weenie.

Sounds like the Kona P2 might be your best bet. It weighs 1.1 kg and is highly recommended by the rigid SS folks. If you don't go carbon and don't go Dimension, this is the way to go.

+1
I got mine from performancebike.com. They built the wheel for me too.