Looks like you are showing a crack in the steerer tube (not a leg of the fork). A repair by a professional can likely get that working for you and reinforce the tube by adding to its inner diameter.

There is no freaking way I would have a carbon (or any) steerer tube repaired. If/when it snaps you will lose all steering control and most likely land face first on the ground.

I would contact Argon about a replacement fork. They may not be able to supply you with a new fork but hopefully they can give you the specs to find a suitable replacement.

It it was me I would not ride with that crack in the steerer whether it was repaired or not. That is one of the highest risk points on a bike in terms of losing control.

[I think the E112 tri forks are NLA] -- Edit sorry I was thinking E118.
Which years ago I got a replacement under warranty due to stripped threads.

Pickup a deal on a frame somewhere? See ebay link but that's a small. On the E112 design looks like another fork can be substituted in, since it's a conventional head tube setup.

If there was aluminium insert with a strong adhesive and prep - I suppose a fix could work. Rocketing a descent with that in the back of my mind - idk!

<https://www.ebay.ca/...d:g:NHUAAOSwhuBg2-qw

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I ended up contacting Argon and they were able to sell me a replacement fork, I toyed with the idea of repair but I went the safer route as the thought of going headfirst over the bars wasn't worth the $250 the fork cost.

Thanks all for the input

If that fork was repaired correctly, with an aluminium tube inserted inside, it would be significantly stronger than a replacement fork, and absolutely no chance of breaking.

If that replacement fork is the exact same fork like you have how do you think that part will be stronger than the other?

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-shoki