Can you draw an arrow to the suspected crack? I can’t see anything that looks like a crack
alwaysgoatm on
I can see it a bit in the weld. That could definitely become an issue
berylliumnitride42 on
Maybe at the weld from chainstay to rear dropout? Assuming the bike is upside down in photo.
KingNnylf on
I would be taking this to see a welder who specialises in Ti, it certainly looks like a crack to the untrained eye
Working-Body3445 on
Get someone to repair the weld.
MoreCamThanRon on
Captain Hindsight over here says that weld has got too hot and not enough gas coverage or post-gas to prevent contamination. I bet those welds were blue before the manufacturer cleaned them. This is why cheap Ti frames can be false economy
You could take it to a good welder to repair it but it may well crack again if they aren’t able to purge / shield it properly, which could be extremely difficult
clintj1975 on
That looks like they didn’t have enough of an argon purge while welding and/or during the cooldown phase and it got contaminated with air. Find a welder that deals with titanium. That weld may need to be ground out and redone.
Afraid-Ad4718 on
next time (if it even happends again) point out where the crack is, I twas kinda hard to find. But oke, it looks like a crack for sure.
hambonelicker on
It looks like a weld inclusion with the two weld beads not fused together. It’s a high stress area so not ideal but perhaps not fatal?
12 Comments
Can you draw an arrow to the suspected crack? I can’t see anything that looks like a crack
I can see it a bit in the weld. That could definitely become an issue
Maybe at the weld from chainstay to rear dropout? Assuming the bike is upside down in photo.
I would be taking this to see a welder who specialises in Ti, it certainly looks like a crack to the untrained eye
Get someone to repair the weld.
Captain Hindsight over here says that weld has got too hot and not enough gas coverage or post-gas to prevent contamination. I bet those welds were blue before the manufacturer cleaned them. This is why cheap Ti frames can be false economy
You could take it to a good welder to repair it but it may well crack again if they aren’t able to purge / shield it properly, which could be extremely difficult
That looks like they didn’t have enough of an argon purge while welding and/or during the cooldown phase and it got contaminated with air. Find a welder that deals with titanium. That weld may need to be ground out and redone.
next time (if it even happends again) point out where the crack is, I twas kinda hard to find. But oke, it looks like a crack for sure.
It looks like a weld inclusion with the two weld beads not fused together. It’s a high stress area so not ideal but perhaps not fatal?
https://preview.redd.it/2bdi2jlau9qe1.jpeg?width=1206&format=pjpg&auto=webp&s=c29dbddfef41d43ad58c9beda583b246ee37294d
def a crack
worst case you strip it down to bare frame and send to a bike builder that does Ti
you could find a local guy but most likely doesn’t do frames and you’re sure need to make sure they’re competent before handing it over.
you’re gonna need to strip the back of the bike apart to bare anyway
Ti needs to be purged in At environment and bring it’s a frame it’s gonna be kinda pain in the ass to do
Aww man, that is a bummer.
Who made the frame? We had a cracked Lynksey in the shop recently. Bike was like 3 months old.