One of the front fork bearing cups on my motorized cruiser is cracking

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Rusty_Nail

Active Member
Oct 11, 2019
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It still seems to work fine when it comes to turning the front wheel. But the top bearing cup is cracking. It makes me nervous so I want to replace them to be on the safe side. I called a local bike shop and they said there's multiple sizes for the beach cruiser frame. The bike is from Walmart. Anyone know what size I would need to get for just a standard Walmart cruiser bike? Do they generally screw in and out or do I need to use a hammer to pop them out? I'll try to get some pics up tomorrow after I get home from work.
 

Sidewinder Jerry

Well-Known Member
Dec 19, 2011
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Rockwood, TN
It still seems to work fine when it comes to turning the front wheel. But the top bearing cup is cracking. It makes me nervous so I want to replace them to be on the safe side. I called a local bike shop and they said there's multiple sizes for the beach cruiser frame. The bike is from Walmart. Anyone know what size I would need to get for just a standard Walmart cruiser bike? Do they generally screw in and out or do I need to use a hammer to pop them out? I'll try to get some pics up tomorrow after I get home from work.
Sounds more like you're talking about a dust cover. If there was a crack in the bearing cup, you'd have to replace the whole hub.
 

Rusty_Nail

Active Member
Oct 11, 2019
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If it's a dust cover, should I be concerned about this? Steering still feels smooth not crunchy. What about using some JB Weld on it? You think that would stop the cracking from progressing?
 

Tony01

Well-Known Member
Nov 28, 2012
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Which part exactly? The part that goes into the frame?

There are standards for each part of a bicycle headset and you must be able to accurately measure stuff. Depends which part is cracked. I’ve cracked bearing cups but it usually takes a hard accident. Give us a picture.
 

Sidewinder Jerry

Well-Known Member
Dec 19, 2011
1,980
902
113
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Rockwood, TN
Which part exactly? The part that goes into the frame?

There are standards for each part of a bicycle headset and you must be able to accurately measure stuff. Depends which part is cracked. I’ve cracked bearing cups but it usually takes a hard accident. Give us a picture.
Yes there would be removable bearing cups in a headset. If it is a cracked dust cover or bearing cup then replace it.

At first I thought you were talking about the front wheel hub.
 

wrench

Well-Known Member
Aug 20, 2019
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So Cal
It still seems to work fine when it comes to turning the front wheel. But the top bearing cup is cracking. It makes me nervous so I want to replace them to be on the safe side. I called a local bike shop and they said there's multiple sizes for the beach cruiser frame. The bike is from Walmart. Anyone know what size I would need to get for just a standard Walmart cruiser bike? Do they generally screw in and out or do I need to use a hammer to pop them out? I'll try to get some pics up tomorrow after I get home from work.
Walmart cruiser bike
The frame neck head set bearing cup pops out,
You can measure the cup and buy it on line or take it to a bike shop and they'll get ya what you need
 
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