First thing: Make sure whatever gave you a flat in the first place isn't still stuck in your tire! Nothing sucks worse than fixing your flat only to give yourself another one when you pump it back up.
Easy fix: Replace the tube.
Cheap fix: Find the hole and patch the tube. Use the cheese grater to rough up the surface of the tube around the hole. Apply the glue. LET IT DRY. Peel the plastic off of the patch and press it firmly onto the dried glue. It will stick, I promise.
Tip-make sure the tire is evenly centered on the rim as you pump the tire back up. Ya don't want to blow the ****** off the rim. And don't go poking screwdrivers under the bead of the tire to put it back on--you'll likely poke another hole in your tube. Use your hands. It's not so hard, you can do it.
Finding the hole can be a huge hassle, in order to find it you should try ikecur instructions.
But if you want fast repair you should buy a new spare tube and install it.
Here is a great instuction guide on how to do it:
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Re: How to repair a flat tire?
to find the hole, try to fill the tire with air, and put it on a shallow water were it's enough for you to see the bumbles that come out from the tire.
to repair a flat tire, take out the interior of tire and if you happen to see the location of the hole try to find an unused rubber and cover the hole with that rubber and glue it with a quick drying glue... (this is a non-professional work)
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you can easily fix a flat without removing the wheel from the bike if it uses a tube application to inflate racers use this method to save time as you just have limited space to do your repair apposed to removing the wheel completely dunno just a thought because im thinking your bike has wheel tensioner jigs on the rear axle and they can be tricky to get rite if your unaware of how they work and you could do more damage then good so try to slip the tire off one side pull the tube out and mend your flat and dont forget to check the interior of the rubber for burrs of foreign material less then a 10 minute job good luck message back if your stuck ok :)
Rotate the wheel so the valve is resting just above the floor. Remove the valve cap.
Unscrew the locking nut on the valve stem. Quickly press down the stem to loosen the seal. You should hear air escaping when the stem is pushed in--if you do not, loosen the nut and try again.
Press the pump head onto the valve and flip the locking lever to make a seal. You'll hear air escape, but it should stop after you've locked the lever. If air continues to leak out, remove the pump head and reattach it.
Make two pump strokes and listen for air moving into the tire. If the pump handle becomes hard to press down after only a few strokes, or if the pressure gauge elevates extremely quickly, remove the pump head and repeat Step 3.
Inflate the tire to its recommended pressure. Remove the head by unlocking its lever and quickly pulling it off the valve stem. Secure the valve's locking nut and cap.
Detach power cable. Remove the side panels to reveal the wheel drive's left side.
Here you will see some electronic circuit - the gear engine.
A small fuse (glass thing with metal in both ends) is most likely blown. Buy a new 350mA fuse at an electronics store - and your gear will be working again.
I was the production foreman for Pro Tec way back when, so hopefully I can help you a little.
As for the tire, depending on the actual production date and model, most of them were manufactured in house, so unless someone happens to have a supply stashed somewhere there is no direct replacement.
It is possible, and some of the first ones built did, use a normal tubed bicycle tire. We switched from those because under heavy use they did wear faster than we liked. So that is one option. I understand there maybe a website that carries solid tires that will work. Another option is to attempt to make a tire. The material should be available at a home repair store, if you took the tire in and tried to match the tubing. This is a last resort in my opinion but it is feasible.
Honestly I think I would try a normal tire or solid first. You should be able to remove the wheel and take it to a bicycle shop. It will need a liner to protect the inner tube. If you need I can walk you through removing and reinstalling the wheel.
As for the computer. For the life of me I can't remember the brand we used. I am guessing you have the handlebar mounted one with a small square head, as opposed to the fully computerised 2000 model.
Replacing it may be a bit of a problem. The computer set up was a stock bicycle computer. However we made a jumper wire to accomidate the length of the frame that plugged into the sensor lead and the computer mount.
As a stock item the sensor was connected to the mount so it involved cutting the wires, soldering connectors onto both the cut end of the mount and sensor. Then making another wire with connectors to run from under the seat along the frame and to where the sensor is mounted near the wheel. In theory any new bicycle computer could be used to replace the old one.
If you aren't up for that task, there's the possibility that there is some sort of wireless system available.
To install it you would need to lossen or remove the wheel cover to mount the other half of the sensor unit to the spokes. Depending on when the bike was manufactured this can range for very easy to a bit tricky.
Probably not everything you wanted to hear but I hope it helps
Several scenariosto consider here. First of all the compatibility with the hub. Second is the deraileur tarvel and the actual shifter. Components are normally matched in sets from factory and do not transfer over unless the entire set, shifter, deraileur and sprocket. Then there is the issue of chain wear fitting the crank and new hub together. Chains and gears seat into each other as they wear so a crank set should stay with the original hub as well, even if you were to install a new chain the wear pattern would be different. So the short answer is unless the brands all match and are in new condition and the hubs are the same thread and diameter, you will not get good results