Questions tagged [welding]

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4 votes
1 answer

Stainless steel ladies bike frame failure?

i am new to this group and this is my first post. My Japanese Miyata ladies bike had this problem for so long time. The down tube had come out for about 3mm from its connecter. It looks like there ...
Samitha Niduwara Bandara's user avatar
5 votes
1 answer

Nut dents on stamped dropout

Problem with stamped dropouts on singlespeed. There were dents from the nuts. It became inconvenient to operate the bike (the wheel is poorly fixed and constantly moves out). It is impossible to ...
dtn's user avatar
  • 151
1 vote
1 answer

Is my bottom bracket cracked?

I was inspecting my bike a couple of days ago and I found what seems like a crack on the bottom bracket welds (encircled below). I’ve ridden it for less than 150 kilometers. I know it’s hard to tell ...
Fourple's user avatar
  • 11
1 vote
1 answer

Should I buy those bicycles with dentation in frame?

I saw this little dentation on the welding between the down tube and the head tube, looked suspicious to me, is it safe to ride?
Rondnd383's user avatar
5 votes
1 answer

Can I use fiberfix tape to reinforce this shoddy weld?

I recently built a hi-ten steel bike and I just realized that it had a large hole in one of the welds near the seat tube and the top tube. Tried taking it back to the shop that shipped me the frame ...
alwyn42's user avatar
  • 71
5 votes
1 answer

Seat post clamp bracket failure - how to repair?

I have a Jamis TAXI beach cruiser needing repair. Part of the bracket that is welded for holding the seat post clamp in place has come loose. The frame says T6 6061 aluminum. I am having trouble ...
Old Grouch's user avatar
4 votes
3 answers

My chainstays have been eaten by rust, can something be done?

I hope you are all safe and sound and your Christmas time is at least decent in these pandemic times. The other day I decided to give a good clean to my steel city bicycle and I removed the stand, ...
EarlGrey's user avatar
  • 3,480