Facebook Twitter LinkedIn Pinterest Bluesky Threads Any idea what caused this? Just noticed this today by ajfancypants Bicycling Bike Bike Repair Biking Cycling Repair
Accomplished_Bat6830 on September 21, 2025 5:55 pm That’s the lug cracking my dude. Frame is toast and/or needs an expensive plreacement of the lug and re-brazing.
long_arm_t-rex on September 21, 2025 5:56 pm That’s a weld failure. Look at the top of the tube. Don’t ride this.
satysat on September 21, 2025 5:58 pm That’s definitely not a paint crack, but I love how hopeful your question was.
bonfuto on September 21, 2025 6:06 pm I’m impressed by this failure. They saved a lot of money on filler. I’m curious what brand this is. Someone that never heard of penetration brazed it.
EnvironmentalArea962 on September 21, 2025 6:15 pm That ain’t crack, looks like just a scratch. Two layers of nail varnish and you are good to go! Just joking ok, get a new frame and be safe!
hambonelicker on September 21, 2025 6:18 pm Sorry it’s done. Crazy frankly I’ve never seen a steel bike break at that location.
steroboros on September 21, 2025 6:21 pm I had a 70s Bianchi road bike randomly crack along the lug like this except in the front….
ajfancypants on September 21, 2025 6:26 pm Dang, thanks for the input ya’ll looks like its tome to retire this RB-1 frame…
Moderalia on September 21, 2025 6:33 pm Honest question; does the lug have to be reset, or if ugly wasn’t a problem could you just run a weld around this crack and save the frame?
fergie on September 21, 2025 6:39 pm Tube has popped out of the lug. Fairly straightforward fix _if_ you know a framebuilder.
Future-Control-5025 on September 21, 2025 6:39 pm How does this happen? Rider weight exceeding limits?
21 Comments
That’s the lug cracking my dude. Frame is toast and/or needs an expensive plreacement of the lug and re-brazing.
That’s a weld failure. Look at the top of the tube. Don’t ride this.
That looks more than paint – looks like the lug has broken.
That’s definitely not a paint crack, but I love how hopeful your question was.
It’ll fail. Not just paint.
That’s Fooked, scrapper im afraid
I’m impressed by this failure. They saved a lot of money on filler. I’m curious what brand this is. Someone that never heard of penetration brazed it.
This is very clearly frame already cracked.
This is very clearly frame already cracked.
Do not ride that bike, the frame is toast.
That frame is ☠️☠️☠️ sorry mate
That ain’t crack, looks like just a scratch. Two layers of nail varnish and you are good to go!
Just joking ok, get a new frame and be safe!
Get it welded. It’s steel, it’ll hold up.
Sorry it’s done. Crazy frankly I’ve never seen a steel bike break at that location.
I had a 70s Bianchi road bike randomly crack along the lug like this except in the front….
Dang, thanks for the input ya’ll looks like its tome to retire this RB-1 frame…
Far away from just paint crack
Honest question; does the lug have to be reset, or if ugly wasn’t a problem could you just run a weld around this crack and save the frame?
Dude that’s fucked. Way beyond just paint lol
Tube has popped out of the lug. Fairly straightforward fix _if_ you know a framebuilder.
How does this happen? Rider weight exceeding limits?