how to change rear tube with rim locks. - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 24 (permalink) Old 11-05-2015, 05:26 PM Thread Starter
2XS
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how to change rear tube with rim locks.

Ok so a couple years i had new tires put on t 140 with new tubes.

Fast forward couple days ago parked the bike the tire just goes flat the rim lock pinched the tube ordered a new tube changed it out but the rim locks are giving me fits one was shifted off to on side I tried to fix it and pinched the brand new tube. Damn it all.

So what are the tricks to get the tube in the tire get the locks installed and not pinch the tube ?

I'm using tire spoons and a 5 gallon bucket. what do guys use as tire lube ?
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post #2 of 24 (permalink) Old 11-05-2015, 05:43 PM
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I took the rim locks out 20 odd years ago and never had a tyre creep on the rim.Just blank off the hole in the rim with a bolt.Make sure the bolt head is very flat,or grind it down to be flat.The correct tyre lube is obviously the best to use,however,i use a silicone lubricant spray and the tyres still never creep on the rim.Just keep the pressure up where they should be.
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post #3 of 24 (permalink) Old 11-05-2015, 05:45 PM
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Pull the rim locks up as close to the rim as possible then insert the partially inflated tube; when you're installing the final tire bead, make sure to push the rim lock down into the tube when the tire bead is at it, so to speak, so that the tire bead seats properly. It's a pain to do this job (I once spent 8 hours on one), but by taking your time and using the proper tire irons, you should be o.k. For a lube, I used hand soap, but some say that will cause rusting on the rim; there are specific lubes out there for the job.


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post #4 of 24 (permalink) Old 11-05-2015, 06:04 PM
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It also helps to heat the tire so it's more flexible. I bought some long spoons at Harbor Freight and I use something similar to Armor All as a lube. Even after all that it still wasn't any fun. I ended up leaving the locks out and taping over the holes from inside.
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post #5 of 24 (permalink) Old 11-05-2015, 07:59 PM
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Cure: Remove Locks. Place trash can about five feet away. Toss and let us know your accuracy!
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post #6 of 24 (permalink) Old 11-05-2015, 08:17 PM
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http://www.amazon.com/1-7-Formula-Tire-Mounting-Lube/dp/B007GFML72
I used this lube on the last tire changes, radials.
Went right on.
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post #7 of 24 (permalink) Old 11-05-2015, 08:43 PM
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Hi,

Quote:
Originally Posted by 2XS View Post
a couple years i had new tires put on t 140 with new tubes.
couple days ago
the rim lock pinched the tube
With respect, if a rim lock really pinched the tube after two years, the rim lock cannot be the problem, something else is wrong and you're missing it blaming the rim lock.

Fitting a tyre and tube on a rim with locks is easy:-

. Put the lock between the rim and the rim tape (you did check new tapes were fitted with the new tyres and tubes?). Saves weakening the tape with holes for the lock threads and the tape holds the locks in place.

. Screw each lock nut just on to the end of the lock thread.

. Fit the tyre on one side of the rim. As the "spoons" (or the fitting machine) get close to a lock, simply push on the end of the thread to move the lock into the tyre - the tape'll hold the lock in position in one direction, the nut on the thread will stop the lock dropping into the tyre.

. Fit the tube. The tape is holding the locks against the rim so they can't pinch the tube (you are putting a little air into the tube to give it shape?).

. Fit the tyre on the other side of the rim. Again, as the spoons or the fitting machine get close to a lock, simply push on the end of the thread to move the lock into the tyre - the tape and the tube'll hold the lock in position.

. Seat the tyre in the rim, set the correct pressure, fit the rim lock washers and tighten the nuts.

Job done.

Quote:
Originally Posted by 2XS View Post
what do guys use as tire lube ?
Whatever the tyre fitter uses.

Quote:
Originally Posted by rambo View Post
I took the rim locks out 20 odd years ago and never had a tyre creep on the rim.
Just keep the pressure up where they should be.
How do you do that when you have a puncture?

Quote:
Originally Posted by steved55 View Post
Cure: Remove Locks. Place trash can about five feet away.
This is a good cure if you never have a puncture on the move afterwards. Otoh, if you have a puncture on the move, my personal, first-hand experience is having one in a wheel with rim locks is infinitely-less underwear-staining than having one in a wheel without rim locks.

Hth.

Regards,

Stuart
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post #8 of 24 (permalink) Old 11-06-2015, 01:08 AM
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Yesterday I was out on my lardy but not so tardy T160. The old slug started wallowing around through turns. And yep, nail punctured rear.

No rim locks & 2 km from home. Ahhhhh decisions, decisions. I thought screw this so I took it real easy and rode home, no way was I ringing you know who for a ute pickup. Tends to squark off a bit if that happens.

Tyre stayed on the rim but I still think they are a good safety investment in case of a high speed blowout. I did have a front blowout about 6 years ago on my old Busa, was very lucky to get away with it, on a bend with a semi big rig coming the other way, still don't know how I pulled that one off

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post #9 of 24 (permalink) Old 11-06-2015, 11:00 PM
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Quote:
2XS: I'm using tire spoons and a 5 gallon bucket. what do guys use as tire lube ?
Hello 2XS,
For tire lube, I used baby powder! Less of a mess. I rubbed it all over the tube and the inside of the tire before sticking the tube in the tire. Then put air in the tube temporarily to straiten the tube out so it didn't have any kinks. I watched a couple video's on YouTube before attempting to mount the tire and found it really helpful. Again, all I used was the talcum powder and it work great.....Gary
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post #10 of 24 (permalink) Old 11-07-2015, 03:19 AM
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Always good if you have a helper and about 5 levers.I get the tyre on fairly easy that way without the security bolts.I have only had 2 rear tyre punctures since 1969 so not too worried about a future puncture.I only use roads so not likely to pick up prickles.
Normally,a rear tyre puncture will go down at a controlled pace if it is a tubed tyre and you might get a chance to slow down in control.Most important is how old the tyres and tubes are, and to replace the tube at every tyre change .Of course,there is a product that can be squirted into the tube to mend a puncture as it happens.I have this in a bicycle and it has worked fairly well in allowing a very slow let down.
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