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Who has filled alloy rim cracks with JB Weld (metal epoxy)?

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Who has filled alloy rim cracks with JB Weld (metal epoxy)?

Old 02-04-19, 02:12 PM
  #51  
biketube guy
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Do not ride that thing any more, tube or no tube! The most econo fix is to find a new rim with the same dimensions, and rebuild the wheel. And unless you're getting loads of flats right now, or riding crazy low air pressure, why are you so set on going tubeless? Tubeless tires need to be 80g. heavier than equivalent clinchers, to make them air tight, they are harder to get on and off the rim (the fit of the bead is tighter, and might require compressed air to seat), only certain small types of holes will self-seal (meaning you will have to take out the valve and put a tube inside a nasty tire), and you'll need to add more sealant every 3-4 months, minimum.
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Old 02-04-19, 06:37 PM
  #52  
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40+ year Bicycle Mechanic, Industry veteran, Ride support for major bicycle companies. I've seen a lot. Please don't trust your life and the lives of those riding with you to this "fix"
Parts are cheap, faces...not so much.

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Old 02-04-19, 06:47 PM
  #53  
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Replace the rims with new, or maybe better condition used ones. Trying to cobble it back together with glue or brazing seems like a waste of your valuable time and effort.

Just my $.02

S
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Old 02-05-19, 12:40 PM
  #54  
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Originally Posted by biketube guy View Post
Do not ride that thing any more, tube or no tube! The most econo fix is to find a new rim with the same dimensions, and rebuild the wheel. And unless you're getting loads of flats right now, or riding crazy low air pressure, why are you so set on going tubeless? Tubeless tires need to be 80g. heavier than equivalent clinchers, to make them air tight, they are harder to get on and off the rim (the fit of the bead is tighter, and might require compressed air to seat), only certain small types of holes will self-seal (meaning you will have to take out the valve and put a tube inside a nasty tire), and you'll need to add more sealant every 3-4 months, minimum.
OT, but for road bikes this is my contention also. The ride of high end clinchers like Vitorria corsa g with latex tubes is fantastic. and if you are really running low pressure go for tubie.... the gluing (issue minimized if you use tape) is not that hard and seams a lot less of a hassle compared to get compressor or some thing else to fit the tubeless tires, then sealant and still carry a spare, etc etc
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Old 02-05-19, 04:57 PM
  #55  
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two cents from engineer-guy:

Replace both rims with tubeless ready rims, and don't look back.
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