rim staightener?ebayitem

In article <[email hidden]>, futrino <[email hidden]>

Quoted message said:

this is not my item, 160193708665

I am curious how well this would work. Probably better than the
hammer and crescent wrench I used years ago in college. I don't even
understand how it works.

<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160193708665&ssPageName=STRK:MEWA:IT&ih=006>

http://preview.tinyurl.com/2blzy8

I think the chances that Carl will buy this outrageously Industrial
Revolution-looking tool are rather high.

The mechanism seems to be that the two curvy bits are the form, and the
bent part of the rim goes under the rust-colored hook. Turn the threads,
and the hook pulls the in-dented rim back into the same curve as the
rest of the rim. The "slot" described seems to be in the head of the
hook, so that's what prevents the dented part from skating left or right
in the tool when you start putting the screw to it.

My suspicion is that it will work best with one size of rim (the form
has to have the right curvature for the rim circumference) and probably
works well on steel, and maybe is a lot more iffy on aluminum.
Nonetheless, I lust after this ridiculously neat tool. As soon as I
finally acquire my long-dreamed-of set of frame facing/chasing tools, I
will pursue a rim-straightener.

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"My scenarios may give the impression I could be an excellent crook.
Not true - I am a talented lawyer." - Sandy in rec.bicycles.racing

On Wed, 02 Jan 2008 20:01:42 GMT, Ryan Cousineau <[email hidden]>

Quoted message said:

In article <[email hidden]>, futrino <[email hidden]>

Quoted message said:

this is not my item, 160193708665

I am curious how well this would work. Probably better than the
hammer and crescent wrench I used years ago in college. I don't even
understand how it works.

<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160193708665&ssPageName=STRK:MEWA:IT&ih=006>

http://preview.tinyurl.com/2blzy8

I think the chances that Carl will buy this outrageously Industrial
Revolution-looking tool are rather high.

The mechanism seems to be that the two curvy bits are the form, and the
bent part of the rim goes under the rust-colored hook. Turn the threads,
and the hook pulls the in-dented rim back into the same curve as the
rest of the rim. The "slot" described seems to be in the head of the
hook, so that's what prevents the dented part from skating left or right
in the tool when you start putting the screw to it.

My suspicion is that it will work best with one size of rim (the form
has to have the right curvature for the rim circumference) and probably
works well on steel, and maybe is a lot more iffy on aluminum.
Nonetheless, I lust after this ridiculously neat tool. As soon as I
finally acquire my long-dreamed-of set of frame facing/chasing tools, I
will pursue a rim-straightener.

Dear Ryan,

Alas, they don't work too well on modern aluminum rims, which dislike
being bent in that direction, sort of like derailleur hangers, where
steel is real, but bending aluminum is a bad idea.

Besides, you can get expensive modern versions. Here's the last time
that an old one showed up on RBT:

http://groups.google.com/group/rec.bicycles.tech/msg/c450dceba896dd67

New versions:

The $148 traditional model that requires removing spokes:

http://www.biketoolsetc.com/index.cgi?id=612669848048&d=single&c=Tool...
or
http://tinyurl.com/ozv9t

The $63 improved that fits between spokes:

http://www.biketoolsetc.com/index.cgi?id=612669848048&d=single&c=Tool...
or
http://tinyurl.com/pgvbs

Cheers,

Carl Fogel

On Wed, 02 Jan 2008 14:45:52 -0600, A Muzi <[email hidden]> may

have said:

futrino said:

this is not my item, 160193708665
I am curious how well this would work. Probably better than the hammer
and crescent wrench I used years ago in college. I don't even
understand how it works.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160193708665&ssPageName=STRK:MEWA:IT&ih=006

Quoted message said:

http://preview.tinyurl.com/2blzy8

It's not for a typical brake-shoe-grabbing rim dent.

The "Overland RimTrue" tool is to make an egg-shaped rim round once
more. Not useful with hollow-section rims (it will merely dent the
inside surface) but can be effective with single wall rims where the
deformed area is unkinked.

For the other kind of deformity, I have one of the old Bicycle
Research pliers that is almost but not quite better than using other
tools in a more creative manner. (It's often faster, but seldom
better.) Of course, the real trick when a rim has such a deformity is
in checking to make sure that the reason for the bump isn't that the
flange is getting ready to separate from the rest of the rim. IMLE.
it's about 60/40, with the slightly greater percentage being those
that are just bent due to misadventure.

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

Quoted message said:

Alas, they don't work too well on modern aluminum rims, which dislike
being bent in that direction, sort of like derailleur hangers, where
steel is real, but bending aluminum is a bad idea.

I'd be concerned about the same - rebending aluminum alloy is
generally frowned upon.

We used to use those devices on steel rims. Depending on the
particulars of the bend, it did work on occasion.

In article
<rcousine-5B4AEE.12014102012008@[74.223.185.199.nw.nuvo
x.net]>,

Ryan Cousineau said:

In article <[email hidden]>, futrino <[email hidden]>

Quoted message said:

this is not my item, 160193708665

I am curious how well this would work. Probably better than the
hammer and crescent wrench I used years ago in college. I don't even
understand how it works.

<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160193708665&ssPageName=STRK:MEWA:IT&ih=006>

http://preview.tinyurl.com/2blzy8

I think the chances that Carl will buy this outrageously Industrial
Revolution-looking tool are rather high.

The mechanism seems to be that the two curvy bits are the form, and the
bent part of the rim goes under the rust-colored hook. Turn the threads,
and the hook pulls the in-dented rim back into the same curve as the
rest of the rim. The "slot" described seems to be in the head of the
hook, so that's what prevents the dented part from skating left or right
in the tool when you start putting the screw to it.

My suspicion is that it will work best with one size of rim (the form
has to have the right curvature for the rim circumference) and probably
works well on steel, and maybe is a lot more iffy on aluminum.
Nonetheless, I lust after this ridiculously neat tool. As soon as I
finally acquire my long-dreamed-of set of frame facing/chasing tools, I
will pursue a rim-straightener.

Already equipped with head set bearing race removal tools?

--
Michael Press

In article <[email hidden]>,

Michael Press said:

In article
<rcousine-5B4AEE.12014102012008@[74.223.185.199.nw.nuvo
x.net]>,

Ryan Cousineau said:

In article <[email hidden]>, futrino <[email hidden]>

Quoted message said:

this is not my item, 160193708665

I am curious how well this would work. Probably better than the
hammer and crescent wrench I used years ago in college. I don't even
understand how it works.

<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160193708665&ssPa
geName=STRK:MEWA:IT&ih=006>

http://preview.tinyurl.com/2blzy8

I think the chances that Carl will buy this outrageously Industrial
Revolution-looking tool are rather high.

The mechanism seems to be that the two curvy bits are the form, and the
bent part of the rim goes under the rust-colored hook. Turn the threads,
and the hook pulls the in-dented rim back into the same curve as the
rest of the rim. The "slot" described seems to be in the head of the
hook, so that's what prevents the dented part from skating left or right
in the tool when you start putting the screw to it.

My suspicion is that it will work best with one size of rim (the form
has to have the right curvature for the rim circumference) and probably
works well on steel, and maybe is a lot more iffy on aluminum.
Nonetheless, I lust after this ridiculously neat tool. As soon as I
finally acquire my long-dreamed-of set of frame facing/chasing tools, I
will pursue a rim-straightener.

Already equipped with head set bearing race removal tools?

Actually, I don't have a crown race remover, and occasionally feel the
need. The alternatives to one are all pretty poor.

I do have a head tube race remover, which may have saved me more time
and trouble versus improvising with the wrong tools than anything else I
own. I also have a nice bearing race installer, too.

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"My scenarios may give the impression I could be an excellent crook.
Not true - I am a talented lawyer." - Sandy in rec.bicycles.racing

In article <[email hidden]>,

Quoted message said:

On Wed, 02 Jan 2008 20:01:42 GMT, Ryan Cousineau <[email hidden]>

Quoted message said:

In article <[email hidden]>, futrino <[email hidden]>

Quoted message said:

this is not my item, 160193708665

I am curious how well this would work. Probably better than the
hammer and crescent wrench I used years ago in college. I don't even
understand how it works.

<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160193708665&ssPag
eName=STRK:MEWA:IT&ih=006>

http://preview.tinyurl.com/2blzy8

I think the chances that Carl will buy this outrageously Industrial
Revolution-looking tool are rather high.

The mechanism seems to be that the two curvy bits are the form, and the
bent part of the rim goes under the rust-colored hook. Turn the threads,
and the hook pulls the in-dented rim back into the same curve as the
rest of the rim. The "slot" described seems to be in the head of the
hook, so that's what prevents the dented part from skating left or right
in the tool when you start putting the screw to it.

My suspicion is that it will work best with one size of rim (the form
has to have the right curvature for the rim circumference) and probably
works well on steel, and maybe is a lot more iffy on aluminum.
Nonetheless, I lust after this ridiculously neat tool. As soon as I
finally acquire my long-dreamed-of set of frame facing/chasing tools, I
will pursue a rim-straightener.

Dear Ryan,

Alas, they don't work too well on modern aluminum rims, which dislike
being bent in that direction, sort of like derailleur hangers, where
steel is real, but bending aluminum is a bad idea.

Besides, you can get expensive modern versions. Here's the last time
that an old one showed up on RBT:

http://groups.google.com/group/rec.bicycles.tech/msg/c450dceba896dd67

New versions:

The $148 traditional model that requires removing spokes:

http://www.biketoolsetc.com/index.cgi?id=612669848048&d=single&c=Tool...
or
http://tinyurl.com/ozv9t

The $63 improved that fits between spokes:

http://www.biketoolsetc.com/index.cgi?id=612669848048&d=single&c=Tool...
or
http://tinyurl.com/pgvbs

Cheers,

Carl Fogel

My last 700C wheelset cost me $40 new. I think I have found the ideal
solution!

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"My scenarios may give the impression I could be an excellent crook.
Not true - I am a talented lawyer." - Sandy in rec.bicycles.racing

Quoted message said:

I don't even understand how it works.

...it matters not.. that device appears to have been designed by
engineers of the Third Riech...

Best Regards - Mike Baldwin

On Wed, 02 Jan 2008 23:30:52 GMT, still just me

may have said:

Quoted message said:

Alas, they don't work too well on modern aluminum rims, which dislike
being bent in that direction, sort of like derailleur hangers, where
steel is real, but bending aluminum is a bad idea.

I'd be concerned about the same - rebending aluminum alloy is
generally frowned upon.

We used to use those devices on steel rims. Depending on the
particulars of the bend, it did work on occasion.

I've rigged something similar to unkink the factory flat spot on some
particularly egregious cheap-bike wheels. It used to be common for
BSOs to come with them that way; lately, not so much. (OTOH, the most
revoltingly soft-and-easy-to-damage rims I have encountered in a long
time were on a VoldeMart BSO that one of the neighborhood folks
dredged up recently. Seldom have I seen a wheel so far out of true,
and never previously have I been able to unkink a rim with just my
hands and a spoke wrench. Loosen spokes, support rim on two blocks,
push down; no hammer required. I do not have Chalo's mass to work
with, either.)

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

Quoted message said:

Alas, they don't work too well on modern aluminum rims, which dislike
being bent in that direction, sort of like derailleur hangers, where
steel is real, but bending aluminum is a bad idea.

There are types and grades of aluminium that bend easily and well, just as
there are types and grades of steel that do not.

On Jan 3, 8:16 am, _ <[email hidden]>

Quoted message said:

Quoted message said:

Alas, they don't work too well on modern aluminum rims, which dislike
being bent in that direction, sort of like derailleur hangers, where
steel is real, but bending aluminum is a bad idea.

There are types and grades of aluminium that bend easily and well, just as
there are types and grades of steel that do not.

True, but those types and grades of aluminum are not suitable for
building strong bicycle rims at a reasonable weight.

Werehatrack said:

I've rigged something similar to unkink the factory flat spot on some
particularly egregious cheap-bike wheels. It used to be common for
BSOs to come with them that way; lately, not so much. (OTOH, the most
revoltingly soft-and-easy-to-damage rims I have encountered in a long
time were on a VoldeMart BSO that one of the neighborhood folks
dredged up recently. Seldom have I seen a wheel so far out of true,
and never previously have I been able to unkink a rim with just my
hands and a spoke wrench. Loosen spokes, support rim on two blocks,
push down; no hammer required. I do not have Chalo's mass to work
with, either.)

We used to fix old steel rims side to side like that: loosen spokes,
place knee strategically at center of bend, pull sides to scientific
alignment point.

Brought them back in enough for kids to ride the bikes again.