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Old 04-22-2012, 07:10 PM   #1
BobJInPA OP
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I have sore muscles

Yesterday, I changed the rear tire on my KLR, and today, my leg muscles are sore. This makes no sense
The only thing I can think of is the trouble I had breaking the bead. I had to use a 2 X 4 wedged under our car as a lever to press another piece of wood down on the tire to break the bead. Even with the power of the lever, it took me forever.
The funny thing was that when I started, I explained to my 12 year old daughter that changing the tire is test between you and the tire, and the winner is the one with more persistence. I thought for sure that the tire was going to win. I won but the tire got the last laugh. All that jumping up and down on the tire and bouncing on the lever got me. Anyway, it is no big deal, but what the hell?
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Old 04-22-2012, 07:16 PM   #2
concours
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You understand the drop center rim principle, right?
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Old 04-22-2012, 07:50 PM   #3
BobJInPA OP
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"drop center rim principle" -- I plead ignorance. Please teach.
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Old 04-23-2012, 05:44 AM   #4
stainlesscycle
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you can break a bead with a c-clamp - might be easier.

drop center - when mounting/dismounting -press the bead of the opposite side you have levers on, into the center of the rim. the drop center is smaller diameter, and allows more clearance for levers, and bead to pull over rim..
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Old 04-23-2012, 10:09 AM   #5
Flashmo
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Some tires are more PIA than others, especially if they have been on that rim for a couple seasons.

Try lube when breaking the bead. I use liquid dish soap with a little water, aiming for the consistency of motor oil. When you first apply the bead breaker, whatever method, pour some lube in the gap created. As you work the rubber, the lube will work it's way between the tire and rim.

Don't try to break the bead by just concentrating on one specific spot. Work back and forth over about 6 inches until you are able to get the center of the area you are working to drop into the center.
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Old 04-23-2012, 10:24 AM   #6
H96669
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I found a very hard one not long ago. Of course the PO had dumped some ride-on type sealant inside, looks like that was well before he installed that tire. Left it there and installed a new tire, darn made it hard to break that bead as the sealer was all dried out. But did not resist the 6' 2x4" under the bench and appropriatly shaped piece of hard wood against the rim all that long.

Got sore arms/shoulders/fingers just cleaning that sealer.

Darn sore muscles...took the K1200RS into some KLR type roads yesterday.
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Old 04-23-2012, 06:33 PM   #7
concours
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Quote:
Originally Posted by BobJInPA View Post
"drop center rim principle" -- I plead ignorance. Please teach.
OK, good, glad I asked, and you're not insulted. As Stainless cycle mentioned, you have to work the tires bead in toward the rims center which then allows you to force the bead into the "drop center" portion if the rim, MEANWHILE, 180 degrees away, you now have the bead with enough slack to (relatively) easily lever it over the rim's edge. This is the geometry which positively holds tires on when you want them, yet allows you to remove them when you want. The bead has multiple steel wires, they do not stretch. At all. Good luck
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Old 04-23-2012, 07:09 PM   #8
tlartist
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Doing squats maybe while taking on/off the wheel?
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Old 04-24-2012, 01:31 AM   #9
Skippii
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Quote:
Originally Posted by BobJInPA View Post
Yesterday, I changed the rear tire on my KLR, and today, my leg muscles are sore. This makes no sense
Which muscles, specifically?
Hamstrings, quadriceps, gastrocnemius?

I know more about muscles than I do about tires...
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Old 04-24-2012, 02:53 AM   #10
emti
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If something dosnt ache when I wake up in the morning I worry that Im dead, Dont worry about it, You were probably working muscles in a range outside whats normal for you, not overexertion but range of motion. Stretching will help. emti
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Old 04-24-2012, 04:11 AM   #11
makad
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My Hero

Neduro's Tire Changing Class
http://advrider.com/forums/showthread.php?t=50717
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