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Bent Axle, what else to change ?

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Bent Axle, what else to change ?

Old 05-14-17, 01:47 PM
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Tahoon
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Bent Axle, what else to change ?

i had abike with bent axle and the bearing nut is completely deformed.
i'm getting new 145mm axle and wondering wheather it's logical to change any other parts since the axle deformation may had caused on other parts.

i've checked the ball bearing (loose ones) and can't see any problem !
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Old 05-14-17, 01:54 PM
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79pmooney
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First thing to do is check to make sure your dropouts are aligned. I'm guessing they are not. Properly aligned, the slots are in line and the inside faces of the dropout are parallel. Any good shop has the tools (it takes a matched pair) to quickly assess both these issues. If the dropouts are a material that canb e safely bent, those same tools make it child's play. It's been a while since I last paid a hop but I doubt it will cost you much more that $25 and they will tell you that they are now aligned or need to be replaced (depending on the type).

If your dropouts are out of alignment, you are going to go through axles fast.

Ben
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Old 05-14-17, 02:02 PM
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CliffordK
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Old MTB with a freewheel?
Bent axles are COMMON.

It really depends on how bad it is, and how much it was ridden with play in the axle.

Get a new axle with new cones and all the parts. Usually about the same price as just the axle. If the cones are bad, then it wouldn't hurt to also replace the bearings. Are they silver, shiny? Also check the races inside the hub.

In really bad cases, the grease seals can also be destroyed.
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Old 05-14-17, 02:18 PM
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Change the entire hub and cogs for a FreeHub and Cassette
never break/bend another axle again.

you can see a comparison of two here
https://www.sheldonbrown.com/free-k7.html
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Old 05-14-17, 07:31 PM
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Originally Posted by xenologer View Post
Change the entire hub and cogs for a FreeHub and Cassette
never break/bend another axle again.

you can see a comparison of two here
https://www.sheldonbrown.com/free-k7.html
Correct answer
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Old 05-16-17, 09:28 AM
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Thanks all for your useful replies.

i can't find the axe bending is huge but that limited to my eyes, but one of the cone deformation is significantly weird the ball bearing made a new groove, the other cone looks nomal.

i bought it bent that way and seller didn't expose that, but i guess this had been old due to that weird cone deformation.

i got another axe with cones.
But do i need to change the cogs; it's a shimano freewheel TZ21 and i can't see any deformation on the smallest cog ?

I couldn't put link for the picture of the cone but it's like a new angled circle had been created by the bearing due to this bend; ofcorse the bearing lock is not ok
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