A Public Service Announcement From Your Uncle Sixty...
09-19-10 | 02:15 PM
#1
Thread Starter
Bicycle Repair Man !!!
Joined: Sep 2007
Posts: 27,266
Likes: 152
From: YEG
Bikes: See my sig...
A Public Service Announcement From Your Uncle Sixty...
There have been an inordinate number of posts and inquiries regarding the suitability of JB Weld to perform repairs that are normally carried out by a skilled welder / frame builder.
There is a reason certain assemblies on bicycles are brazed and welded and this is because brazing and welding offer the needed bond strength to make sure that things stay together and resist stress and fatiigue.
JB Weld is an epoxy glue and is only for light duty applications... the bond strength on a brazed joint is at least 30 times stronger.
Damaged frames are generally not worth repairing due to the relative cost of the repair compared to the value of the frame.
If you do have a damaged frame or fork talk to a professional mechanic and even better, find a frame builder as some small issues can be repaired rather quickly and might only cost you a few cold ones.
I prefer IPA.
There is a reason certain assemblies on bicycles are brazed and welded and this is because brazing and welding offer the needed bond strength to make sure that things stay together and resist stress and fatiigue.
JB Weld is an epoxy glue and is only for light duty applications... the bond strength on a brazed joint is at least 30 times stronger.
Damaged frames are generally not worth repairing due to the relative cost of the repair compared to the value of the frame.
If you do have a damaged frame or fork talk to a professional mechanic and even better, find a frame builder as some small issues can be repaired rather quickly and might only cost you a few cold ones.
I prefer IPA.
09-19-10 | 06:15 PM
#2
Senior Member
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Thank you. This thread should be a sticky and REQUIRED reading for anyone with a frame or fork repair question.
09-19-10 | 06:25 PM
#3
Senior Member
Joined: Jun 2007
Posts: 12,257
Likes: 5
From: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
no one, or nearly no one, reads stickies, unfortunately.
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Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
