Snapped chainstay on Langster - Yikes!
02-21-08, 11:10 PM
#51
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Nice. I hope your seatpost wasn't above the limit line.
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
02-21-08, 11:12 PM
#52
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From the second picture, it looks like there is some kind of hole drilled into the inner side of the chainstay. That would definitely be a place for a stress concentration. Combine that w/ the heat from the weld (not all welds are perfect, some can be too hot) and a break is not out of the question.
In other words: manufacturers defect!
In other words: manufacturers defect!
02-21-08, 11:16 PM
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wow. i's say it's time to consider trying something else. see if you can get another warranty frame and sell that ish.
02-22-08, 12:12 AM
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Youre just too badass for your bikes. At least youre alright.
Not to hijack the thread, but I noticed some noise when I was pedaling home last night with every rotation of the pedal. Figured maybe something was up with the dumb french BB. I noticed increasing slack when standing, figured the rear wheel must have loosened a bolt on the axle. Road it home slowly. Hopped off and saw I was missing one chain ring bolt and the other four were half way undone. =X
Not to hijack the thread, but I noticed some noise when I was pedaling home last night with every rotation of the pedal. Figured maybe something was up with the dumb french BB. I noticed increasing slack when standing, figured the rear wheel must have loosened a bolt on the axle. Road it home slowly. Hopped off and saw I was missing one chain ring bolt and the other four were half way undone. =X
02-22-08, 12:22 AM
#58
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Nice. I hope your seatpost wasn't above the limit line.
I was safe by about 2.5 inches RE: limit line
(six inches in the tube, nine inches from the top of the tube to the top of the seat.)
Maybe larger frame = less seatpost sticking out = less leverage to crack frame?
I got the largest frame available; next bike will not be dam sloping TT.
Last edited by C8H10N4O2; 02-22-08 at 12:25 AM. Reason: quote for context
02-22-08, 12:31 AM
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Youre just too badass for your bikes. At least youre alright.
Not to hijack the thread, but I noticed some noise when I was pedaling home last night with every rotation of the pedal. Figured maybe something was up with the dumb french BB. I noticed increasing slack when standing, figured the rear wheel must have loosened a bolt on the axle. Road it home slowly. Hopped off and saw I was missing one chain ring bolt and the other four were half way undone. =X
Not to hijack the thread, but I noticed some noise when I was pedaling home last night with every rotation of the pedal. Figured maybe something was up with the dumb french BB. I noticed increasing slack when standing, figured the rear wheel must have loosened a bolt on the axle. Road it home slowly. Hopped off and saw I was missing one chain ring bolt and the other four were half way undone. =X
02-22-08, 03:47 AM
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I was safe by about 2.5 inches RE: limit line
(six inches in the tube, nine inches from the top of the tube to the top of the seat.)
Maybe larger frame = less seatpost sticking out = less leverage to crack frame?
I got the largest frame available; next bike will not be dam sloping TT.
(six inches in the tube, nine inches from the top of the tube to the top of the seat.)
Maybe larger frame = less seatpost sticking out = less leverage to crack frame?
I got the largest frame available; next bike will not be dam sloping TT.
02-22-08, 03:56 AM
#61
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Whatever else, you are clearly a straight-out monster. I've broken a pedal axle, and a rear axle in the last 18 months, but no frames.....yet. You win.
02-22-08, 08:19 AM
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i broke 2 frames this past year. A trek mtb that broke in the same spot as your langster. other one was a ****ty cruiser/hybrid that i buckled the downtube, top tube, and bent the seatpost when i bunny hopped a pot hole.
02-22-08, 08:48 AM
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02-22-08, 08:53 AM
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How could the vent (drain?) hole not be a stress riser?
How could the vent (drain?) hole not be a stress riser?
There also may be uneven stress in the tube because it is so close to transition to the solid dropout.
Then there's the whole subject of weld heat effect there. Cannondale talked about how important it was (back around the 1980's) to get the full-frame post-build heat treating just so. If I'm not mistaken, steel cromo 4130 frames and components were strongest with a particular post build heat treating...I think some of the custom/small builders were (are?) sending thin-wall products to heat treaters before painting.
There also may be uneven stress in the tube because it is so close to transition to the solid dropout.
Then there's the whole subject of weld heat effect there. Cannondale talked about how important it was (back around the 1980's) to get the full-frame post-build heat treating just so. If I'm not mistaken, steel cromo 4130 frames and components were strongest with a particular post build heat treating...I think some of the custom/small builders were (are?) sending thin-wall products to heat treaters before painting.
Last edited by dogsridewith; 02-22-08 at 08:56 AM. Reason: add (why didn't title print?
02-22-08, 10:39 AM
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Specialized. Fail.
Seriously weak i hope you get a new frame. I would sell it if i was you but you do what you like.
Get yourself a 631/< frame.
Seriously weak i hope you get a new frame. I would sell it if i was you but you do what you like.
Get yourself a 631/< frame.
02-22-08, 10:46 AM
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Same exact thing just happened to me yesterday. I'm blaming it on riding around in Europe on cobblestone and brick all day. I'm glad I noticed before I started to **** my **** up.
02-25-08, 03:43 PM
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EDIT: I see you're talking about bolts coming loose. It happens all the time. I use locktite on most of the bolts on my bikes.
03-03-08, 04:16 PM
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03-03-08, 04:21 PM
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HOly smokes! Glad I sold my Langster!(sorry Zach)
But seriously, I got rid of the thing cause I always felt like I was gonna break it. I'm 6'0" and 180lbs and was afraid like hell to drop curbs or do anything fun or agressive. Now, reading this thread, I feel entirly justified.
But seriously, I got rid of the thing cause I always felt like I was gonna break it. I'm 6'0" and 180lbs and was afraid like hell to drop curbs or do anything fun or agressive. Now, reading this thread, I feel entirly justified.
Last edited by Rusty Piton; 03-03-08 at 04:53 PM.
