bent axle replacement
03-01-12 | 08:36 PM
#1
Thread Starter
Member
Joined: Apr 2006
Posts: 28
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From: Seattle
bent axle replacement
When I took about the rear hub of my old Kent Folder, I noticed that the axle was bent a little. It is a non-quick release hub, so the axle is a solid threaded rod - something like 10mm diameter. I want to replace it. I know steel is not just steel - some is stronger. I could go buy some threaded steel stock and cut to length, but I'm not sure if axles are made of something special. Any insights?
I was a bit surprised to see it bent - I would expect a 10 mm steel axle to be pretty strong. I bought the bike used and maybe a previous owner was really heavy.
Robert
I was a bit surprised to see it bent - I would expect a 10 mm steel axle to be pretty strong. I bought the bike used and maybe a previous owner was really heavy.
Robert
03-01-12 | 08:45 PM
#2
Really Old Senior Member
Joined: Feb 2007
Posts: 14,685
Likes: 1,921
From: Mid Willamette Valley, Orygun
Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3
Mild steel rod is too soft.
Freewheels are simply prone to bending axles. Actually, kinking might be a better description.
https://sheldonbrown.com/free-k7.html
Freewheels are simply prone to bending axles. Actually, kinking might be a better description.
https://sheldonbrown.com/free-k7.html
03-01-12 | 09:18 PM
#3
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Before going with a new axle, have the dropout alignments checked to ensure the dropouts are parallel to each other.
5 minute job at an LBS - tools look like large t-handles with "cups" on the ends.
=8-)
5 minute job at an LBS - tools look like large t-handles with "cups" on the ends.
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
03-02-12 | 01:29 AM
#5
Senior Member
Joined: Oct 2011
Posts: 151
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From: Florida, U.S.A.
Bikes: sport touring with small front back baskets. 17 mph
that kent should have 9.5 mm with 26 threads per in. wheels manufacturing will have a chro moly one you just need to know the length needed.
03-02-12 | 06:08 PM
#7
Mechanic/Tourist
Joined: Apr 2007
Posts: 7,522
Likes: 12
From: Syracuse, NY
Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.
Dropout alignment will not likely bend an axle - more commonlyh a bent axle will slowly change dropout alignment, expecially on a cheaper bike. Certainly a good idea to align dropouts when putting on a new axle, but you need to replace the axle in any case.
03-02-12 | 07:48 PM
#8
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Strong quality dropouts will force a load to be non-linear along the axle - aiding bendature and breakage....
El-cheapo thin dropouts can be manipulated by a very strong quality axle when mounted...not as bad as the above...but still doesn't hurt to align anyway
Bottom-line, checking alignment helps avoid throwing good money after bad...
=8-)
El-cheapo thin dropouts can be manipulated by a very strong quality axle when mounted...not as bad as the above...but still doesn't hurt to align anyway
Bottom-line, checking alignment helps avoid throwing good money after bad...
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
