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Old 09-02-2006, 03:59 PM   #1
Barak OP
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Thumb $3 Bead Breaker and photos

I have been reading about different ways to effectively break the bead on the KTM rims, especially since doing it myself the old fashioned way a few weeks ago. I have changed tires on bikes dozens of times using the jump up and down on the tire with your heel and use your sweat as lubricant technique untill I read some of the treads on bead breaking here.
Thank you , thank you, thank you
Decided to try the cheap way first. Got a 5 inch C clamp from Harbor Freight tools for $3.
Proceeded to break the bead on a Dunlop D908 in about 30 seconds. Worked like a charm!
The nice thing about this way is that I may even be able to make a repair to the tube, out in the field without dismantling the entire rim. I'll have to see.
Attached are the photos.
I think this would work well with the scorpions too.
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Old 09-02-2006, 04:45 PM   #2
El Diablo
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Nice...thanks for the info. You saved me $100
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Old 09-02-2006, 04:52 PM   #3
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Nice Pics
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Old 09-02-2006, 07:09 PM   #4
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Quote:
Originally Posted by OrangeDude
Nice...thanks for the info. You saved me $100
So are you getting the C-clamp for our trip? one less thing I need to worry about...
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Old 09-02-2006, 07:56 PM   #5
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you rule!

thanks barak, i was gonna order the $100 bead breaker like some have suggested, now i'm gonna take the cash and buy more beer! actually i don't drink but there are more useful things i can do with the cash. thanks for the tip and pics.
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Old 09-02-2006, 08:17 PM   #6
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You might have one of these in the garage already


http://www.webbikeworld.com/t2/bead-...ad-breaker.htm
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Old 09-02-2006, 08:23 PM   #7
Ricardo Kuhn
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actually worrks even better if you focus the power of the C-clamp into one surface of the tyre (if is dificult) you can use a piece of wood or even the tyre lever but maybe will scratch the rim to prevent the clamps from moving the tyres on the two sides and focus the screw movement on just one face of the tyre by mounting the tyrelever in a somehow tangent angle to the rim (resting on two point of the rim as far away as possible)...

believe me It works, I have used the method a bunch of times.
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Old 09-02-2006, 09:57 PM   #8
Donkey Hotey
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That's wise that you tried it but caution to those counting on it, this method doesn't work every time with every tire.

I've had stubborn tire beads that I tried to break that way and had zero luck (same HF clamps). The problem was with the length of the bead that it contacts. It just would not get down close enough to the bead and over a long enough distance to do the job. It just stretched against the tire and the clamp slipped outward. Try it first. YMMV.
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Old 09-02-2006, 10:13 PM   #9
950 Adventurer Nut
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Great Pics

The simple idea's are usually the best, no always the cheapest though.
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Old 09-03-2006, 02:47 AM   #10
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Just thinking out loud here.

How about a 3 inch section of mill bastard file underneath the C clamp contact point to increase its surface area and the texture of the file should help with the keeping the clamp from slipping.
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Old 09-03-2006, 06:12 AM   #11
Dare2fail
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I tried it with Pirelli Scorpions and found that the contact patch was too small and it just folded the tyre. I ended out having to use 3 of them to try and push enough of the tyre to lift it over the bead. I think success depends on your rims and the tyres that you run, but it didn't work for me. That said, if you try it and it doesn't work it's not like you have lost a lot of money on it
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Old 09-03-2006, 09:40 AM   #12
radiowazee
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C-Clamp

Sears is having a big sale this weekend on tools, etc. Wonder if I can pick me up a 5" C clamp! :)
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Old 09-03-2006, 09:45 AM   #13
radiowazee
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Quote:
Originally Posted by Dare2fail
I tried it with Pirelli Scorpions and found that the contact patch was too small and it just folded the tyre. I ended out having to use 3 of them to try and push enough of the tyre to lift it over the bead. I think success depends on your rims and the tyres that you run, but it didn't work for me. That said, if you try it and it doesn't work it's not like you have lost a lot of money on it

I wonder if two blocks of wood -- one between the clamp and the tyre, and the other between the clamp and the rim (still with the microfibre towel in there to prevent scratching) would do it.

Seems it would offer a wider surface area to press against the Scorp's walls.

You're right -- $3 to experiment ain't a bad price
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Old 09-03-2006, 10:05 AM   #14
Donkey Hotey
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Quote:
Originally Posted by radiowazee
You're right -- $3 to experiment ain't a bad price
Unless you're 20 miles out in the desert or woods and can't get the bead loose. Is it worth the savings to have to hike 20 miles? Or scrap your rim and/or tire because you couldn't get it loose and were forced to ride on it?
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Old 09-03-2006, 10:14 AM   #15
Barak OP
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test it on your tires

Quote:
Originally Posted by GregCifu
Unless you're 20 miles out in the desert or woods and can't get the bead loose. Is it worth the savings to have to hike 20 miles? Or scrap your rim and/or tire because you couldn't get it loose and were forced to ride on it?
It's a good idea to test anything new at home before taking it out to the field. The Clamp also makes it easier to get that first tire iron wedged in even if the bead is not completely separated.
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