Kershaw "Speed Safe" Defects...

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Nov 24, 2007
Messages
3
Howdy all. I am new to this forum.

I'm a contractor in the IT industry which requires me to travel in some unsavory parts of the city at sometimes the worst possible hours. I quickly realized the threat potential and acquired a permit to carry which has now enabled me to save my life twice, once from a group mugging boxed in by cars at a gas station and a car jacking attempt.

I am a man who likes to have some form of personal protection all the time. Unfortunately I can't always carry a firearm at certain client sites and since I have extensive training in edged weapons, I was looking for something that was small enough to use as a an everyday tool in an office/executive setting without looking threatening but had the proper blade and handle configuration for wet work as required so I'd have something to get me to my car where my firearm would be waiting for me.

Ergo, I want a blade that can be deployed quickly and that my life can depend on. My Emerson’s, while excellent fighting knives, are just too scary looking for a business environment and I don't want to alarm the sheep when I use it to open mail, cut open boxes, cut zip ties etc.

The KO/Kershaw Mini Mojo filled the requirements I need in those situations and the blade "sings" in my hand. It cuts and slashes deeply and efficiently with little effort due to the proper ghurka khukri like blade angle to overcome the shortness of the 2.25" blade and the point is down turned center line for a straight thrust preferred by me in a fighting knife.

Any item I buy for self defense, I immediately torture test it since my life has to depend on it.

The Mini Mojo passed (so far, I've only had it for two weeks) all my slashing and thrusting techniques on various media. The blade always sharpens well enough to shave (Yup I shave with either my Buck or Shrade Folders to save money on razors, they work just as good) the hair off my arm or back of my hands. I found the point to be a little weak on substances harder then bone but the point still cleaned up nicely after dulling it. The metal handle is sturdy and slides in an out of the pocket effortlessly without looking. The clip needed to be moved to the other end for rapid deployment and they wisely had the threaded mounting holes to do so. The handle has was definitely designed for a comfortable grip using your last three fingers on the handle with index finger parked nicely on the back side of the blade where the four grooves are there for thumb assisted closing. When held in forward grip the knife feels like a part of me.

Now I'd like some input from anybody who owns a KO/Kershaw knife with this "Speed Safe" Mechanism since that is the only defect I found with this knife.

In my leisure time, I have been reading books almost every day and while I have been reading I have been constantly opening and closing the knife trading off with both left and right hand. I also perform this exercise on the drive to and from work every day.

I bought the knife precisely two weeks ago and the "Speed Safe" mechanism broke last night. It sounded something like a spring snapping. Now the knife requires two hands to open and lock the blade and flops helplessly in the unlocked position.

I still have the receipt so I can still return or replace it. I really want to like this knife for EDC Monday's through Fridays and I probably was much harsher on the knife then it's intended purpose. I fidget so I always have to be "doing" something and I fear I will break another one if this mechanism isn't strong enough to take the normal opening and closing. I won't be putting the next Mojo through the rigors that I did with this one the last two weeks since I now know what the knife can do and how it handles. I will still be opening and closing it however and I don't know if the "Speed Safe" feature will last.

I'd be interested in any defects people have experienced with the "Speed Safe" mechanism found in any of the Kershaw/Ken Onion line of knives during normal everyday use.

I really want to like this knife.

Thanks for your input in advance.

db
 
Howdy all. I am new to this forum.

I'm a contractor in the IT industry which requires me to travel in some unsavory parts of the city at sometimes the worst possible hours. I quickly realized the threat potential and acquired a permit to carry which has now enabled me to save my life twice, once from a group mugging boxed in by cars at a gas station and a car jacking attempt.

I am a man who likes to have some form of personal protection all the time. Unfortunately I can't always carry a firearm at certain client sites and since I have extensive training in edged weapons, I was looking for something that was small enough to use as a an everyday tool in an office/executive setting without looking threatening but had the proper blade and handle configuration for wet work as required so I'd have something to get me to my car where my firearm would be waiting for me.

Ergo, I want a blade that can be deployed quickly and that my life can depend on. My Emerson’s, while excellent fighting knives, are just too scary looking for a business environment and I don't want to alarm the sheep when I use it to open mail, cut open boxes, cut zip ties etc.

The KO/Kershaw Mini Mojo filled the requirements I need in those situations and the blade "sings" in my hand. It cuts and slashes deeply and efficiently with little effort due to the proper ghurka khukri like blade angle to overcome the shortness of the 2.25" blade and the point is down turned center line for a straight thrust preferred by me in a fighting knife.

Any item I buy for self defense, I immediately torture test it since my life has to depend on it.

The Mini Mojo passed (so far, I've only had it for two weeks) all my slashing and thrusting techniques on various media. The blade always sharpens well enough to shave (Yup I shave with either my Buck or Shrade Folders to save money on razors, they work just as good) the hair off my arm or back of my hands. I found the point to be a little weak on substances harder then bone but the point still cleaned up nicely after dulling it. The metal handle is sturdy and slides in an out of the pocket effortlessly without looking. The clip needed to be moved to the other end for rapid deployment and they wisely had the threaded mounting holes to do so. The handle has was definitely designed for a comfortable grip using your last three fingers on the handle with index finger parked nicely on the back side of the blade where the four grooves are there for thumb assisted closing. When held in forward grip the knife feels like a part of me.

Now I'd like some input from anybody who owns a KO/Kershaw knife with this "Speed Safe" Mechanism since that is the only defect I found with this knife.

In my leisure time, I have been reading books almost every day and while I have been reading I have been constantly opening and closing the knife trading off with both left and right hand. I also perform this exercise on the drive to and from work every day.

I bought the knife precisely two weeks ago and the "Speed Safe" mechanism broke last night. It sounded something like a spring snapping. Now the knife requires two hands to open and lock the blade and flops helplessly in the unlocked position.

I still have the receipt so I can still return or replace it. I really want to like this knife for EDC Monday's through Fridays and I probably was much harsher on the knife then it's intended purpose. I fidget so I always have to be "doing" something and I fear I will break another one if this mechanism isn't strong enough to take the normal opening and closing. I won't be putting the next Mojo through the rigors that I did with this one the last two weeks since I now know what the knife can do and how it handles. I will still be opening and closing it however and I don't know if the "Speed Safe" feature will last.

I'd be interested in any defects people have experienced with the "Speed Safe" mechanism found in any of the Kershaw/Ken Onion line of knives during normal everyday use.

I really want to like this knife.

Thanks for your input in advance.

db
I have quite a few speed safe kershaws.My favorite being the leek with the 3" partialy serrated S30V blade & the G10 grips.I've used it for most everything & never had to sharpen it once(except an occasional stroping).It's still razor sharp.This is the first time I've heard of the speed safe mechanism breaking.It must be a defect.I'm sure they'll replace it.
Another assisted opener I carry is CRKT's Tiger Striped Triumph 1031TS.I love the handle on this knife.I swear it could be coated in oil & you still wouldn't lose your grip.Handles are very important to me.What's the sense in having a quality blade,if it's going to slip out of your hand at the first sign of water,oil,mud or even blood?Plus the blade springs out with authority!They're about $60 & well worth it!
 
Send it in to the Kershaw Warranty Department and they will replace it.

Kershaw Warranty
18600 SW Teton Ave.
Tualatin, OR 97062
 
Howdy all. I am new to this forum.

I'm a contractor in the IT industry which requires me to travel in some unsavory parts of the city at sometimes the worst possible hours. I quickly realized the threat potential and acquired a permit to carry which has now enabled me to save my life twice, once from a group mugging boxed in by cars at a gas station and a car jacking attempt.

I am a man who likes to have some form of personal protection all the time. Unfortunately I can't always carry a firearm at certain client sites and since I have extensive training in edged weapons, I was looking for something that was small enough to use as a an everyday tool in an office/executive setting without looking threatening but had the proper blade and handle configuration for wet work as required so I'd have something to get me to my car where my firearm would be waiting for me.

Ergo, I want a blade that can be deployed quickly and that my life can depend on. My Emerson’s, while excellent fighting knives, are just too scary looking for a business environment and I don't want to alarm the sheep when I use it to open mail, cut open boxes, cut zip ties etc.

The KO/Kershaw Mini Mojo filled the requirements I need in those situations and the blade "sings" in my hand. It cuts and slashes deeply and efficiently with little effort due to the proper ghurka khukri like blade angle to overcome the shortness of the 2.25" blade and the point is down turned center line for a straight thrust preferred by me in a fighting knife.

Any item I buy for self defense, I immediately torture test it since my life has to depend on it.

The Mini Mojo passed (so far, I've only had it for two weeks) all my slashing and thrusting techniques on various media. The blade always sharpens well enough to shave (Yup I shave with either my Buck or Shrade Folders to save money on razors, they work just as good) the hair off my arm or back of my hands. I found the point to be a little weak on substances harder then bone but the point still cleaned up nicely after dulling it. The metal handle is sturdy and slides in an out of the pocket effortlessly without looking. The clip needed to be moved to the other end for rapid deployment and they wisely had the threaded mounting holes to do so. The handle has was definitely designed for a comfortable grip using your last three fingers on the handle with index finger parked nicely on the back side of the blade where the four grooves are there for thumb assisted closing. When held in forward grip the knife feels like a part of me.

Now I'd like some input from anybody who owns a KO/Kershaw knife with this "Speed Safe" Mechanism since that is the only defect I found with this knife.

In my leisure time, I have been reading books almost every day and while I have been reading I have been constantly opening and closing the knife trading off with both left and right hand. I also perform this exercise on the drive to and from work every day.

I bought the knife precisely two weeks ago and the "Speed Safe" mechanism broke last night. It sounded something like a spring snapping. Now the knife requires two hands to open and lock the blade and flops helplessly in the unlocked position.

I still have the receipt so I can still return or replace it. I really want to like this knife for EDC Monday's through Fridays and I probably was much harsher on the knife then it's intended purpose. I fidget so I always have to be "doing" something and I fear I will break another one if this mechanism isn't strong enough to take the normal opening and closing. I won't be putting the next Mojo through the rigors that I did with this one the last two weeks since I now know what the knife can do and how it handles. I will still be opening and closing it however and I don't know if the "Speed Safe" feature will last.

I'd be interested in any defects people have experienced with the "Speed Safe" mechanism found in any of the Kershaw/Ken Onion line of knives during normal everyday use.

I really want to like this knife.

Thanks for your input in advance.

db

I know it has been a while since you posted this but I have an answer for you. The failure of the speed safe is due to the repeated opening and closing. I have heard of this before. It was described to me as being like bending a paper clip back and forth. Eventually it builds up heat and....snaperoo. Sorry to hear about the speed safe breaking buy you can get a fresh supply of torsion bars sent to you. Just contact the warranty Dept. as Tim suggested.
 
I have a all black Leek that the spring broke on just last week. It is over one year old, not near two. One day it worked, next day it did not. :eek:
Send it in? Not me, I am not going to pay the shipping to return it for fixing. I gave it to a lady at work who needed a knife and does not know any better. I will not be buying anymore assisted openers from any company. Just one more thing to go wrong when you least expect it to.
 
I have a all black Leek that the spring broke on just last week. It is over one year old, not near two. One day it worked, next day it did not. :eek:
Send it in? Not me, I am not going to pay the shipping to return it for fixing. I gave it to a lady at work who needed a knife and does not know any better. I will not be buying anymore assisted openers from any company. Just one more thing to go wrong when you least expect it to.:jerkit:

cbxer55, I'm not trying to start an argument with you. I just have a question.
If you had a DVD recorder that was over a year old and it broke, would
you send it back to the company if they would fix it for free? I would.
Or any product for that matter.
See what I'm saying?

Giving it to a co-worker was a great idea, better than sitting in drawer somewhere, unused.

mike
 
The intended fatigue lifetime for the spring is probably higher than the amount of times you engaged and disengaged the blade meaning the likelihood of a defected spring is high. If they don't replace it its probably because they didn't design it to be opened and closed as many times as you did in the short period of time that you owned it, in which case I'd consider it a design flaw. Just send it in and they should replace it.
 
i wonder if all the trauma associated with his rigorous testing of the knife put unnecessary pressure on the speedsafe mechanism, or at least some shock/vibration damage (stabbing things harder than bone, etc)
 
Re: "The intended fatigue lifetime for the spring" - I have a chive that failed after a few years; the kershaw folks told me that the torsion bar is intended to take about 10,000 cycles. They also sent me replacement torsion bars that I was able to install myself - a little hassle, but preferable to me to sending it away for repair. The kershaw folks, and their knives, have always rated Very High on my list.
 
yeah, I had the same problem, but I did not have the knife when it broke. I picked it up from my desk and went to flick it open and nothing happened! I am having my local dealer fix it for me.
 
I haven'a had any problem with assisted opening knives but if you ever wanted anything different the Kershaw Whirlwind is absolutely amazing. I fell in love with it the second it cut my thumb to the bone the first time I opened it :) It's a great well-sized knife. If you have the opportunity I highly reccomend picking one up.

Tom
 
Though I think its just a fluke, if you feel the torison A/O technology is not up to your level of use, I suggest a waved delica or endura. They are not nearly as "scary" as an emerson, and they wave open just the same. No mechanical doodads to worry about. Also, you could go with another mechanical method such as a knife with just a blade flipper, or an axis or compression lock. My .02.
 
I have a Speed bump that broke down on me after about a month and I thought I would just have to give up on the thing (it took a nasty fall a while back and took some bad damage to the tip so I think that the warranty may be void because of that). So I disassembled my knife to see what the problem was, after a few minutes i had removed the broken torsion bar and stored it away someplace safe. So after that I went on Kershaw's website and sent an email to them asking if I could replace the torsion bar. The very next day they sent me an email saying that they would either allow me to send the knife back to get the torsion bar replaced or they could send the part to me, i opted to have it sent to me. I got it 4 days later, took 5 minutes to install it and done, my Bump works like a dream
 
Regarding the "bent paperclip effect", it's not heat buildup that causes it to break. When you bend it one way you compress the inside diameter and harden it, then when you bend it back the other way the new inside compresses and hardens, and eventually it breaks.

You're basically work hardening it until it's become very brittle (as the compressed metal does not re-expand when you un-bend it).
 
Have had and used a Leek for a few years. No Problems Great knife...
 
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