I'm having trouble removing rear sprocket. I need

Hi Jake if you have the right tools it will be no trouble. Before you remove the rear wheel remove the front sprocket cover and loosen the nut or nuts holding the front sprocket. This will be safer than doing it with the r/wheel off. Next remove the wheel and keep note as to where the spacers go (don't mix them up!) remove the sprocket nuts and the sprocket. Again note which way the sprocket goes some have a thinner center so make sure the new one fits the same way. Refit the wheel leave it loose and loosen the adjusters allowing the wheel all the way forward. Then open the chain and join the new chain to the end of the old one with the link supplied then pull the old chain until the new one is fitted. Next join the new chain together. ( you may need to remove a link or two) it will depend on the length of the new chain. After this fit the new f/sprocket and tighten the nut then adjust the chain leaving 1.5inches of free play up and down. Make sure the adjusters sre even on the marks each side. And finaly After a day or two of use adjust again to around 1 inch up and down. Have fun. Regards Jim...

You need to know how to remove and replace the rear wheel and then the sprocket and the proper torque for the fasteners.

It is the rear freewheel assembly causing the problem. if is fixable, but you have to be good with tools, the bicycle shop and the electric bike shop both said they couldn't fix it, but is is doable. 1. you need a special bmx tool that fits that back wheel, your local bike shop should have it in stock. 2. you need to remove the freewheel sprocket and disgard it along with the the bearings (make sure to unscrew the razor chain sprocket from the freewheel assembly and secure it for reuse). 3. either purchase a new freewheel sprocket for bmx wheel or remove one from a old bike (again you will a special tool for that). 4. screw the razor chair sprocket onto the new BMX sprocket (it goes on with the same 4 original screws, right over the sprockets. 5. Screw the freewheel back onto the rim now. tada its fixed.

Not much info to go on so I am going to make some assumptions. That is that you have hand brakes and multiple speeds so that you have several sprockets on the rear.

1. Take a pic or draw one on how the chain is run so that you can put it back the same way.
2. You will need to loosen the cable that operates the rear brakes to allow the jaws of the brakes to open all the way so that the tire will fit thru them.
3. Loosen the nuts on both ends of the rear axle.
4. Begin slipping the axle out of the slots in the frame and as you do that you will have to remove the chain from the sprockets. While doing that notice that the chain is on the inside of the frame so that when you are ready to replace the rear wheel, you will need to put the chain on the sprocket BEFORE you position the wheel in the frame and the axle in the slots on each side.

If you have another bike similar or a digital camera, the other bike or a good photo will be very helpful when putting the chain back on and the wheel in place.

Tools needed- appropriate wrenches- a small and medium crescent wrench would be ideal as you may have metric size nuts and not have the correct open wrenches.

Once the wheel is removed you will need to let ALL of the air from the tube to give the maximum flexibility to work with the tire. Use a medium blade screw driver to pry the tire over the edge of the rim. Once you have about 6 inches over the edge of the rim you can do the rest by hand. Now that the tire is half off do the same process for the other side of the tire.

What??? RLtoFixYa doesn't know what they are talking about. Your problem is a faulty/broke "one way roller clutch" which is threaded onto the rear wheel. I've already replaced 2 on my son's MX500.....

It's loose on the hub. Special tools are required to tighten them. Bike Shops have them and will possibly perform the repair for less than the cost of the tools.

http://www.parktool.com/blog/repair-help/categories/cassette-and-freewheel-service

Then check the shifting...

http://www.parktool.com/blog/repair-help/categories/derailleur-systems

Word to the wise: don't buy bicycles from anywhere but a professional bicycle shop. Box stores don't usually have the skills for proper assembly, setup or follow-up.

WOW!!!WHAT A JOKE!MY KID SAVED $470 AND PURCHASED HIS MX 650 ONLY TO HAVE THE REAR FREEWHEEL BREAK THE FIRST WEEK RIDING IT.NND BY SEEING ALOT OF THE SAME PROBLEMWITH EVERYONE ELSE.RAZOR SHOULD' VE AT LEAST PUT A HEAVYDUTY ONE IN IT.OK PEOPLE LETS FIGURE IT OUT IF ANY ONE KNOWS AGOOD BEARING COMPANY,POST IT.MY KIDS BUMMED HE CANT RIDE IT

Its not meant to be removed. Purchase a new one and save yourself some troubles. You need special tools to remove it. I highly recommend purchasing the wheel complete.

If the hubs and sprocket locations are the same, then you could change it no problem.I personally found that there is little or no advantage having one or the other, except that if the wheel combination of tyre and rim is lighter, then your handling will benefit marginally for obvious reasons.

If you go bigger on the rim, you lose out slightly on acceleration, but improve your MPG or you could simply compensate by going up a tooth or two on your back sprocket.

As far as your long outback trek, I would recommend using a tube as if you have a problem with the tyre or rim, you can get stuck with no way to pump it up.Whatever you decide, I recommend taking a spare tube , puncture repair kit.

Hope this helps, and good luck on your trip.

The problem is witht he flywheel on the rear wheel assembly. I had mine fixed by a professional last night (at a bike store). Razor uses a very cheap spring that is designed to fail and then to top that off did not use enough bearings as well (12 bearings short out of the factory). My son had also sprayed WD-40 all around the back axle (trying to make it faster). This is bad because, the bearings are packed in grease and WD-40 is a de-greaser. Never get WD-40 anywhere near your back axle!!! Anyway, the flywheel was way easier to remove than I thought. It is threaded onto the rim's axle shaft and just screws off. Once you get the flywheel, off you have to take it apart, fabricate a new spring (my son's new spring came from an old 10 speed's tensioning spring), reset the 3 pawls, repack the bearings, put the flywheel back together, and screw it back onto the wheel. I will post a YouTube video on this later. Hopefully this is enough info to get you started.