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What kind of tool will loosen this nut holding a chainwheel on a one piece crank?
Can someone tell me how to remove this nut that is holding the chainwheel in place on this one piece crank? In the picture below, the red arrows are pointing to three slots in the nut that a tool would fit into to remove the nut.
Is there a name for a too like that? I looked on the park tools web site but I didn't see anything.
Is there a way to loosen it without having to buy a specialized tool?
Thanks in advance,
chainring
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
asked Jan 5 at 13:18
MorrisMorris
613
add a comment |
Can someone tell me how to remove this nut that is holding the chainwheel in place on this one piece crank? In the picture below, the red arrows are pointing to three slots in the nut that a tool would fit into to remove the nut.
Is there a name for a too like that? I looked on the park tools web site but I didn't see anything.
Is there a way to loosen it without having to buy a specialized tool?
Thanks in advance,
chainring
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
asked Jan 5 at 13:18
MorrisMorris
613
I'm looking for a translation for the tool based on these German wikipedia pages: de.wikipedia.org/wiki/Hakenschl%C3%BCssel de.wikipedia.org/wiki/Nutmutter
– gschenk
Jan 5 at 13:26
Maybe Parktool HCW-5 will fit?
– Klaster_1
Jan 5 at 13:27
A Hakenschlüssel is a hook spanner or sometimes C spanner (so spanner rather than key but a similar word)
– Chris H
Jan 5 at 13:36
Yeah, in the US it's usually some variation of "spanner" (which is distinguished from "wrench").
– Daniel R Hicks
Jan 5 at 18:28
Some locknuts for bottom brackets used that kind of wrench. They were also in use for locknuts on old-style motorcycle headsets. So you might be lucky inquiring at a motorbike dealer/workshop.
– Carel
Jan 7 at 12:15
add a comment |
Can someone tell me how to remove this nut that is holding the chainwheel in place on this one piece crank? In the picture below, the red arrows are pointing to three slots in the nut that a tool would fit into to remove the nut.
Is there a name for a too like that? I looked on the park tools web site but I didn't see anything.
Is there a way to loosen it without having to buy a specialized tool?
Thanks in advance,
chainring
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
asked Jan 5 at 13:18
MorrisMorris
613
Can someone tell me how to remove this nut that is holding the chainwheel in place on this one piece crank? In the picture below, the red arrows are pointing to three slots in the nut that a tool would fit into to remove the nut.
Is there a name for a too like that? I looked on the park tools web site but I didn't see anything.
Is there a way to loosen it without having to buy a specialized tool?
Thanks in advance,
chainring
chainring
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
asked Jan 5 at 13:18
MorrisMorris
613
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
asked Jan 5 at 13:18
MorrisMorris
613
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
edited Jan 5 at 13:43
Argenti Apparatus
33.8k23685
33.8k23685
asked Jan 5 at 13:18
MorrisMorris
613
asked Jan 5 at 13:18
MorrisMorris
613
asked Jan 5 at 13:18
MorrisMorris
613
613
I'm looking for a translation for the tool based on these German wikipedia pages: de.wikipedia.org/wiki/Hakenschl%C3%BCssel de.wikipedia.org/wiki/Nutmutter
– gschenk
Jan 5 at 13:26
Maybe Parktool HCW-5 will fit?
– Klaster_1
Jan 5 at 13:27
A Hakenschlüssel is a hook spanner or sometimes C spanner (so spanner rather than key but a similar word)
– Chris H
Jan 5 at 13:36
Yeah, in the US it's usually some variation of "spanner" (which is distinguished from "wrench").
– Daniel R Hicks
Jan 5 at 18:28
Some locknuts for bottom brackets used that kind of wrench. They were also in use for locknuts on old-style motorcycle headsets. So you might be lucky inquiring at a motorbike dealer/workshop.
– Carel
Jan 7 at 12:15
add a comment |
I'm looking for a translation for the tool based on these German wikipedia pages: de.wikipedia.org/wiki/Hakenschl%C3%BCssel de.wikipedia.org/wiki/Nutmutter
– gschenk
Jan 5 at 13:26
Maybe Parktool HCW-5 will fit?
– Klaster_1
Jan 5 at 13:27
A Hakenschlüssel is a hook spanner or sometimes C spanner (so spanner rather than key but a similar word)
– Chris H
Jan 5 at 13:36
Yeah, in the US it's usually some variation of "spanner" (which is distinguished from "wrench").
– Daniel R Hicks
Jan 5 at 18:28
Some locknuts for bottom brackets used that kind of wrench. They were also in use for locknuts on old-style motorcycle headsets. So you might be lucky inquiring at a motorbike dealer/workshop.
– Carel
Jan 7 at 12:15
I'm looking for a translation for the tool based on these German wikipedia pages: de.wikipedia.org/wiki/Hakenschl%C3%BCssel de.wikipedia.org/wiki/Nutmutter
– gschenk
Jan 5 at 13:26
I'm looking for a translation for the tool based on these German wikipedia pages: de.wikipedia.org/wiki/Hakenschl%C3%BCssel de.wikipedia.org/wiki/Nutmutter
– gschenk
Jan 5 at 13:26
Maybe Parktool HCW-5 will fit?
– Klaster_1
Jan 5 at 13:27
Maybe Parktool HCW-5 will fit?
– Klaster_1
Jan 5 at 13:27
A Hakenschlüssel is a hook spanner or sometimes C spanner (so spanner rather than key but a similar word)
– Chris H
Jan 5 at 13:36
A Hakenschlüssel is a hook spanner or sometimes C spanner (so spanner rather than key but a similar word)
– Chris H
Jan 5 at 13:36
Yeah, in the US it's usually some variation of "spanner" (which is distinguished from "wrench").
– Daniel R Hicks
Jan 5 at 18:28
Yeah, in the US it's usually some variation of "spanner" (which is distinguished from "wrench").
– Daniel R Hicks
Jan 5 at 18:28
Some locknuts for bottom brackets used that kind of wrench. They were also in use for locknuts on old-style motorcycle headsets. So you might be lucky inquiring at a motorbike dealer/workshop.
– Carel
Jan 7 at 12:15
Some locknuts for bottom brackets used that kind of wrench. They were also in use for locknuts on old-style motorcycle headsets. So you might be lucky inquiring at a motorbike dealer/workshop.
– Carel
Jan 7 at 12:15
add a comment |
3 Answers
3
active
oldest
votes
Such a tool may be called hook spanner.
The nut is holding the inner race of the bottom bracket bearing.
A web search with "bottom bracket" and "hook spanner" produces a couple of hits. (For instance, the tool mentioned by Klaster in the comments.) You may use a vernier caliper to determine the dimensions of your nut and find the right tool for you.
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
add a comment |
Another option is to clamp the lower crank in a vice and use a hammer and brass drift into the three notches.
Downside, heavy blows are likely to distort the metal, so use more but gentler taps. A smaller hammer helps with control.
This is a one-piece crank, so they're not exactly known for having fine tolerances.
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
1
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
add a comment |
They come in various sizes.
I think you need something like this:
hook spanner
answered Jan 9 at 20:32
MalarkyMalarky
32715
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
Such a tool may be called hook spanner.
The nut is holding the inner race of the bottom bracket bearing.
A web search with "bottom bracket" and "hook spanner" produces a couple of hits. (For instance, the tool mentioned by Klaster in the comments.) You may use a vernier caliper to determine the dimensions of your nut and find the right tool for you.
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
add a comment |
Such a tool may be called hook spanner.
The nut is holding the inner race of the bottom bracket bearing.
A web search with "bottom bracket" and "hook spanner" produces a couple of hits. (For instance, the tool mentioned by Klaster in the comments.) You may use a vernier caliper to determine the dimensions of your nut and find the right tool for you.
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
add a comment |
Such a tool may be called hook spanner.
The nut is holding the inner race of the bottom bracket bearing.
A web search with "bottom bracket" and "hook spanner" produces a couple of hits. (For instance, the tool mentioned by Klaster in the comments.) You may use a vernier caliper to determine the dimensions of your nut and find the right tool for you.
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
Such a tool may be called hook spanner.
The nut is holding the inner race of the bottom bracket bearing.
A web search with "bottom bracket" and "hook spanner" produces a couple of hits. (For instance, the tool mentioned by Klaster in the comments.) You may use a vernier caliper to determine the dimensions of your nut and find the right tool for you.
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
answered Jan 5 at 13:40
gschenkgschenk
3,39911428
3,39911428
add a comment |
add a comment |
Another option is to clamp the lower crank in a vice and use a hammer and brass drift into the three notches.
Downside, heavy blows are likely to distort the metal, so use more but gentler taps. A smaller hammer helps with control.
This is a one-piece crank, so they're not exactly known for having fine tolerances.
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
1
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
add a comment |
Another option is to clamp the lower crank in a vice and use a hammer and brass drift into the three notches.
Downside, heavy blows are likely to distort the metal, so use more but gentler taps. A smaller hammer helps with control.
This is a one-piece crank, so they're not exactly known for having fine tolerances.
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
1
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
add a comment |
Another option is to clamp the lower crank in a vice and use a hammer and brass drift into the three notches.
Downside, heavy blows are likely to distort the metal, so use more but gentler taps. A smaller hammer helps with control.
This is a one-piece crank, so they're not exactly known for having fine tolerances.
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
Another option is to clamp the lower crank in a vice and use a hammer and brass drift into the three notches.
Downside, heavy blows are likely to distort the metal, so use more but gentler taps. A smaller hammer helps with control.
This is a one-piece crank, so they're not exactly known for having fine tolerances.
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
answered Jan 5 at 20:00
Criggie♦Criggie
43k571145
43k571145
1
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
add a comment |
1
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
1
1
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
I'ev done this successfully recently (with a BB lockring on a beater bike). The thing I'd be wary of with this approach is doing it back up again - the hook spanner is much more controlled
– Chris H
Jan 11 at 14:44
add a comment |
They come in various sizes.
I think you need something like this:
hook spanner
answered Jan 9 at 20:32
MalarkyMalarky
32715
add a comment |
They come in various sizes.
I think you need something like this:
hook spanner
answered Jan 9 at 20:32
MalarkyMalarky
32715
add a comment |
They come in various sizes.
I think you need something like this:
hook spanner
answered Jan 9 at 20:32
MalarkyMalarky
32715
They come in various sizes.
I think you need something like this:
hook spanner
answered Jan 9 at 20:32
MalarkyMalarky
32715
answered Jan 9 at 20:32
MalarkyMalarky
32715
answered Jan 9 at 20:32
MalarkyMalarky
32715
answered Jan 9 at 20:32
MalarkyMalarky
32715
32715
add a comment |
add a comment |
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I'm looking for a translation for the tool based on these German wikipedia pages: de.wikipedia.org/wiki/Hakenschl%C3%BCssel de.wikipedia.org/wiki/Nutmutter
– gschenk
Jan 5 at 13:26
Maybe Parktool HCW-5 will fit?
– Klaster_1
Jan 5 at 13:27
A Hakenschlüssel is a hook spanner or sometimes C spanner (so spanner rather than key but a similar word)
– Chris H
Jan 5 at 13:36
Yeah, in the US it's usually some variation of "spanner" (which is distinguished from "wrench").
– Daniel R Hicks
Jan 5 at 18:28
Some locknuts for bottom brackets used that kind of wrench. They were also in use for locknuts on old-style motorcycle headsets. So you might be lucky inquiring at a motorbike dealer/workshop.
– Carel
Jan 7 at 12:15