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Kool Stop Tire Bead Jack

Mfg PartNum:KS-TJ
$13.50
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The Kool Stop Tire Bead Jack is an articulated tool, with a comfortable grip, for installing really tight tires. The articulated end uses the rigid piece against the rim edge as a fulcrum while the hinged end lifts the bead up and over the opposite edge of the rim. This is a great tool for dealing with difficult tires.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Tool Type: Tire Levers 

Ordered by Most Relevant First
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Reviewed 10/8/2020
by JT
OR
Overall Rating
1 of 1 customers found this review helpful.
Best tool for tight tires

It took three 60+yr old women to put on an impossibly tight new schwalbe tire (yes, even us oldsters still think we should be able to do this without paying a shop). This tool gave this little old lady the ability to change her own tire.

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Reviewed 8/10/2020
by DocWass
Cycling Enthusiast
PA
Value Rating
Overall Rating
It Works Like It Says

This tool is amazingly simple to use but it does take some muscle. The first time I used this on a really difficult-to-mount tire/rim, I was thinking "this tool is surely going to break" under the force needed to mount the tire... but it is built very well, didn't even flex and popped the tire on the rim. I've used it several times since and it makes this task so much easier. My thumbs are thankful!

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Reviewed 5/14/2020
by WIScycle
Daily Commuter
Wisconsin
Value Rating
Overall Rating
Never ride without it

I discovered this simple, elegant, effective tool after struggling way too many times to mount road bike tires. This makes it simple. I strap it to my second bottle cage, or store in jersey pocket when commuting and touring. Highly recommend.

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Reviewed 5/11/2020
by Shawnz
Indiana
Overall Rating
Helps with mounting 20 inch recumbent trike tires

This tool really helps with mounting 20 inch trike tires. I have no issues mounting larger tires on my bicycles but the 20 inch tires arent near as flexible. This tool isn't perfect but it does help get them on the rims.

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Reviewed 8/22/2020
by Michael
Daily Commuter
New Jersey
Value Rating
Overall Rating
great tool

Used this tool to put on my Schwalbe Marathon 700c Tire (HS 420) 700x32 tires last night 8/21/20 and it made all the difference in the world .

I very highly recommend this tool.

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Reviewed 5/12/2020
by Shawnz
Indiana
Overall Rating
Helps with mounting 20 inch recumbent trike tires

This tool really helps with mounting 20 inch trike tires. I have no issues mounting larger tires on my bicycles but the 20 inch tires arent near as flexible. This tool isnt perfect but it does help get them on the rims.

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Reviewed 8/23/2019
by MePlusBike
Cycling Enthusiast
Florida
Value Rating
Overall Rating
An absolute must have

If you've EVER struggled with getting a tire on your rim this would have solved your problem and saved your thumbs.

I broke 3 tire levers before breaking down and buying this item. The difference is unbelievable!

In my case I was using Vittoria Randonneur tires on a bontrager rim. I know some tires are very easy to fit on the same rims but I don't have those and had gotten quite used to the tires I had. I had also struggled before with the same tire but got over it. I didn't know there was such a gadget.

While not the smallest item its not too big to strap under your saddle. I won't leave home without it cos changing a tire in the rain is no fun. Changing in the searing heat is no fun. Now I don't worry about it.

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Reviewed 3/24/2020
by Houston cyclist
Cycling Enthusiast
The mean streets of Houston, TX
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
A must-have tool for every cyclist

Bought the Kool Stop Tire Bead Jack to assist in mounting a tight Veloflex Corsa open clincher on a Mavic Open 4 CD rim. I got both Corsa tires on with bare hands (see Veloflex review elsewhere, great tire!), but when I developed a slow leak in one tube, I decided to give my sore thumbs a break and take a chance with the Kool Stop tool. (Veloflex warns against using tools to mount their tight clinchers.) I am glad I did.

The Kool Stop is simple, strong and well made, and somewhat mimics the action of two strong thumbs. Best of all, it is safe to the tube, the tire, the rim and the user, yet enables one to slip the tire on within seconds. There's almost no way one could damage a tire or tube with the Kool Stop. Even if it sits in the tool box for months, the first time you use it, it will pay for itself, particularly when mounting, tight, flat, non-vulcanized high-threadcount tires like Veloflex or Vittoria. I would give it more stars if I could. Consider it like buying insurance. Hopefully, you will never need it...but you will be glad it is there if you do.

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Reviewed 4/25/2019
by Fatherof3onMI
Cycling Enthusiast
Mercer Island, WA
Value Rating
Overall Rating
It works when when your hands just aren't stron enough

Mounted tries for over 40 year, but jut could not get this tire on. Thought I would try this tool. It's not perfect. However to be fair int might have been operator error. This was a particularly tight bead on a vintage rim. Tool kept slipping off bead as I struggled with the last six inches, but only if i tried to lift too much bead over trim wall at one time. Going inch by inch it worked although the bead itself kept crawling off opposite where I was lifting on. Fixed that by jamming another tire lever in to stop the bead from coming off. Glad to have it in the toolbox.

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Reviewed 7/3/2020
by scappoose cowboy
Cycling Enthusiast
the mts. between Scappoose and Vernonia, or.
Value Rating
Overall Rating
gives you the leverage you need to mount tough tires

Some of the newer tubeless tires are getting hard to mount, this lever helps pull that last section onto the rim.

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Reviewed 2/3/2020
by David
Daily Commuter
Seattle
Value Rating
Overall Rating
Works well but be careful on rim edges

I used these to mount a tough Schwable G-OneHED rim combination and ended up bending the bead of the rim. They work well but can provide too much leverage and damage your rim.

While I was never able to mount the Schwable on the rim, I removed them, straightened the rim flange, and was able to mount a similarly difficult Gravelking on the rim, this time being careful to not damage the rim flange.

So heads up.

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Reviewed 1/16/2020
by Don
San Diego CA
Overall Rating
Not for Tubless

I bought this tool to use with my tubless 700c tires and wheels. It was not able to hold the tire bead to get it onto the rim.

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Reviewed 8/22/2019
by MePlusBike
Cycling Enthusiast
Florida
Value Rating
Overall Rating
An absolute must have

If you've EVER struggled with getting a tire on your rim this would have solved your problem and saved your thumbs.

I broke 3 tire levers before breaking down and buying this item. The difference is unbelievable!

In my case I was using Vittoria Randonneur tires on a bontrager rim. I know some tires are very easy to fit on the same rims but I dint have those and had gotten quite used to the tires I had. I had also struggled before with the same tire but got over not. I didn't know there was such a gadget.

While not the smallest item its not too big to strap under your saddle. I won't leave home without it cos changing a tire in the rain is no fun. Changing in the searing heat is no fun. Now I don't worry about it.

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Reviewed 5/28/2018
by David
Mesa
Overall Rating
5 of 5 customers found this review helpful.
Awesome little tool

This makes life a little too easy. I almost miss the challenge of putting on tight fitting ties with my bare hands until my palms are blistered, then resorting to using tire levers and pinch-flatting a couple of tubes. Ha! Never again! I ride a touring bike with a giant seat pack and keep this with me all the time.

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Reviewed 3/13/2018
by Phil W
Cycling Enthusiast
Southern Indiana
Value Rating
Overall Rating
5 of 5 customers found this review helpful.
Extra leverage for mounting tires.

The Kool Stop Tire Bead Jack provides extra leverage for mounting those hard-to-mount tires. However, you must be careful not to pinch the tube when you grip the tire. It may be better for mounting tubeless tires. It works fine at home but it is too long for most seat bags or jersey pockets so it's not easy to take on the road.

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Reviewed 9/23/2017
by Dr. Bob
Cycling Enthusiast
PNW
Value Rating
Overall Rating
7 of 7 customers found this review helpful.
Time and finger saver

After a 2hr. struggle with Schwalbe tires and Mercury carbon rims I gave up. Saw the bead jack and gave it a try. 5 min. to mount 2 tires. Hooks over bead and levers over rim edge. If using tubes avoids the dreaded tube pinch.. Makes the first mount of tight tubeless tires to tubeless rims fairly easy. One of the top tools I have ever purchased for making your mechanic life easier.

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Reviewed 9/26/2020
by Anonymous
Cycling Enthusiast
Overall Rating
Very clever!

If you have ever fought with irons to seat a tire you will love this.

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Reviewed 7/17/2020
by ROBIN WILLIAMS
Daily Commuter
Long Beach, CA
Overall Rating
The Best

Works as advertised, small and light enough to use commuting.

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Reviewed 6/18/2020
by Anonymous
Cycling Enthusiast
Monroe Township, NJ
Overall Rating
Kool Stop my one stop

Have 20 wheeled bike. Removing and reinstalling are difficult. Even the strongest in our clubs have difficulty, but Kool Stop never fails to insure the install.

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Reviewed 2/8/2018
by Anonymous
Cycling Enthusiast
Clermont, FL
Overall Rating
5 of 5 customers found this review helpful.
Great tool to install tires

With 2-way fit rims, I always struggled to install new tires. Occasionally, I would pinch the new tube and have to remove and reinstall the tire. Since I got the Kool Stop Tire Bead Jack I have not had any problems - installation is now relatively easy. One of my best purchases.

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