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What tool do I need to crimp cable ferrules?

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What tool do I need to crimp cable ferrules?

Old 08-05-23, 01:47 PM
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What tool do I need to crimp cable ferrules?

I have looked under bike cable ferrule crimper but I get all kinds of cable crimpers. Is there a certain name for that tool? and where can I get a cheap one? I want to crimp some 5mm ferrules on some cable housing? Thanks.
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Old 08-05-23, 02:02 PM
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I've never crimped one on. Just slide them over the end of the housing. If you have your cable properly run from the lever to what ever it's pulling on whether derailleur or brake, then the ferrule will stay on by the fact the inner cable won't have any slack in it for the cable housing to come out of the ferrule.

I have seen some manufactured ones that were crimped on. But do you really need it crimped?
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Old 08-05-23, 02:09 PM
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Originally Posted by Iride01
I've never crimped one on. Just slide them over the end of the housing. If you have your cable properly run from the lever to what ever it's pulling on whether derailleur or brake, then the ferrule will stay on by the fact the inner cable won't have any slack in it for the cable housing to come out of the ferrule.

I have seen some manufactured ones that were crimped on. But do you really need it crimped?
I dont know what I need. The cables I took off had crimping. I would think if you dont crimp them then the cable is just pushing against the bottom of the ferrule which could cause deformations whereas if its crimped on it is literally attached to the housing and the force would be on side of the housing not on the end of the housing. Distributing the force to the sides and also the bottom of the housing would be better I would think. Do I need it? Probably not honestly. But I would like to have a proper crimper if its not too expensive.
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Old 08-05-23, 02:24 PM
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There's no benefit to crimping. Also many high quality ferrules won't take well to crimping.

We see crimping on OEM cable housing because it saves time on the factory floor. The cables are furnished as premeassured kits ready to install. There's no similar benefit in the aftermarket.
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Old 08-05-23, 02:47 PM
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Originally Posted by FBinNY
There's no benefit to crimping. Also many high quality ferrules won't take well to crimping.

We see crimping on OEM cable housing because it saves time on the factory floor. The cables are furnished as premeassured kits ready to install. There's no similar benefit in the aftermarket.
I see. Thank you!! In the meantime I have discovered that my Park Tool cable cutter also has a cable cap crimper and a ferrule crimper built in! So as I result I now have two reasons not to buy a cable housing ferrule crimper! 1. I dont need it. 2. I already have one. lol.. I love this board!!
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Old 08-06-23, 07:39 AM
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As others have stated there really isn't any need to crimp ferrules onto cables. Improper (too tight) crimping can deform the cable housing and create drag/friction. I started using the Jagwire brake and shifter cables a few years ago, and the thinner Jagwire ferrules don't crimp nearly as well as the older style silver metal ferrules, so I stopped crimping ferrules a long time ago. A properly tensioned cable will keep all the bits in place where they are supposed to be. The only cables that I have seen recently with "permanent" ferrules are the Jagwire STI cables that have two permanently bonded/attached plastic ferrules on the rear derailleur cable loop.
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Old 08-06-23, 09:03 AM
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Never heard of crimping ferrules to the housing.
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Old 08-06-23, 09:45 AM
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Originally Posted by smd4
Never heard of crimping ferrules to the housing.
All the original cables on bikes have crimped ferrules so I figured it was necessary to crimp them when replacing or making my own cables, turns out it isnt. Maybe on airplanes but not on bikes.
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Old 08-06-23, 09:47 AM
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I just filed a small hole into the blades of an old set of wire dikes. I crimp my aluminum ferrules just barely enough to keep them on in order to prevent deformation of the cable. If you must have a proper tool for the job then just get a Ferrule Crimping Tool. When crimping an aluminum bicycle cable end ferule, use this tool at the area where the cable is inserted. The distal end of the ferrule is solid and will not crimp.



SAMYO Ferule Hand Crimping Tool - Amazon 13 USD

Some people must have the proper tool. Most of us just crimp, if we do, with just about anything on hand.
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Old 08-06-23, 09:50 AM
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Originally Posted by BikePower
All the original cables on bikes have crimped ferrules so I figured it was necessary to crimp them when replacing or making my own cables, turns out it isnt. Maybe on airplanes but not on bikes.
It’s been nearly 40 years since I bought a pre-assembled bike from a bike shop, so if things have changed I wouldn’t have noticed.
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Old 08-06-23, 10:21 AM
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Probably crimped for people assembling a lot of bikes. Just grab a pre cut housing and go. The plastic ferrels fit pretty snug.

Last edited by curbtender; 08-06-23 at 02:27 PM.
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Old 08-06-23, 10:39 AM
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Originally Posted by zandoval
I just filed a small hole into the blades of an old set of wire dikes. I crimp my aluminum ferrules just barely enough to keep them on in order to prevent deformation of the cable. If you must have a proper tool for the job then just get a Ferrule Crimping Tool. When crimping an aluminum bicycle cable end ferule, use this tool at the area where the cable is inserted. The distal end of the ferrule is solid and will not crimp.



SAMYO Ferule Hand Crimping Tool - Amazon 13 USD

Some people must have the proper tool. Most of us just crimp, if we do, with just about anything on hand.
I wish you wouldnt have showed me this tool. I was happy and accepted the fact that I dont need it. Now... *sigh*
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Old 08-06-23, 01:41 PM
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Originally Posted by curbtender
Probably crimped for people assembling a lot of bikes. Just grab a pre cut cable and go. The plastic ferrels fit pretty snug.
naw.. the metal end caps are crimped on to prevent consumers from screwing up as easily and as often.... and "Cables" are never pre-cut, but the casings are... they are supplied to the OEM factory assemblers in pre-cut kits for the style of bike being assembled.
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Old 08-06-23, 11:13 PM
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Originally Posted by BikePower
I wish you wouldnt have showed me this tool. I was happy and accepted the fact that I dont need it. Now... *sigh*
DON'T do it stud... Don't give in...

Ya know those old worn out wire dikes you have been meaning to replace but still keep and am reluctant to use?

Yep... Those are the ones. Just file down the blades a little then file a small notch into one side of the blades. Works Great!
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Old 08-06-23, 11:21 PM
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Originally Posted by zandoval
DON'T do it stud... Don't give in...

Ya know those old worn out wire dikes you have been meaning to replace but still keep and am reluctant to use?

Yep... Those are the ones. Just file down the blades a little then file a small notch into one side of the blades. Works Great!
good thinking Zand
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