Romoval of rear wheel and gears to replace spokes
Best solution to a wheel that's wobbling all over the place because it's missing spokes: Replace the wheel. Why? Straightening a wheel that's messed up because it's missing a few spokes is a difficult art.
Next best solution: Bring the wheel to a bike shop and ask them to replace the missing spokes and true the wheel. Why? See above.
If you insist on having a whack at it, you can remove the wheel by loosening the axle nuts and slipping the wheel out of the frame. You may need to remove a brake pad to get the tire past the brake assembly. Then take the wheel to your friendly neighborhood bike shop and ask them to remove the freewheel assembly from the hub (it requires a special tool that you don't have). Buy some spokes and nipples while you're at the shop. Be very nice to the bike shop people because they'll likely be the folks you'll come back to when you decide you need a new wheel. Once you have the spokes in and the wheel is straight (good luck with that), you can replace the gear cluster without the tool the shop used to take it off, since the freewheel doesn't freewheel in the direction you turn it to put it back on. Good luck!
SOURCE: remove 5 speed sprocket on 26''rear wheel
hi
you need a tool called a rear sproket puller, best to take it to a bike shop they will only charge you a pound to take it off there and then in seconds,
SOURCE: Broken spoke in rear wheel. What could have caused
I ride a Trek 6.9 and have had spokes break for no apparent reason. Most of the time the spoke will break from over tightening on initial installation or just plain fatigue. Replacing the spoke is fairly straight forward. Remove the wheel from the bike and remove the tire. Remove the protective tape on the inside of the wheel to gain access to the spoke nut. After replacing the spoke you must make sure the wheel is true. If you do not have a set up for this, reassemble the wheel with the new spoke and take the assembly to your nearest bike store. They should have the equipment to true up your wheel assembly
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SOURCE: Spokes comming loose on a
The rear wheel has a greater load and is subjected to higher tangential forces than the front wheel. Consequently spoke nipple wear and spoke breakage usually show up first in the rear wheel. If a full truing job hasn't stopped the loosening, you have two options: remove the tire, tube and rim strip and apply thread-lock to each spoke end, then immediately re-true the wheel, or rebuild with a new set of spokes and nipples. Given that you've already had one nipple go out completely, I'd go with new parts; the nipples probably have worn-out threads so thread-lock would only work temporarily.
I've seen wheels with solder applied to the spoke nipples under the rim strip - this works until you need to true the wheel to correct a minor rim bend. The solder also adds rotating weight, which is not a good thing.
SOURCE: What is the proper tool to remove rear wheel
You need a freewheel/cassette removal tool. Here's a link to Park Tools page (great quality tools at reasonable prices) http://www.parktool.com/category/freewheel-cassette There are several different types to fit different styles. My usual method is to remove the quick release skewer, place the tool on the freewheel/cassette, put the skewer back on to hold the tool in place (skewer should be just a little loose). Put the tool side of the wheel down and clamp it in a vise. Then grab the wheel with your hands and twist it sharply (not slow and steady) counter-clockwise. Good luck, Vote if you found this helpful. Al K
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