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I need to remove the rear sprocket to change a broken spoke

I need to remove the rear sprocket to change some spokes

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A tool that is like a socket goes in the center of the gears. And keeps the sprocket from spinning
And a special wrench slides over the out side gears grips gears.

Then centrifugally forced the sprocket will unscrew clockwise.
You sort of need those tools.
Or if you are good with tools. One can be made.

I'm not sure if that is what you want to do.

But yes, the sprocket is screwed on like a nut.

Hope this helps

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Posted on May 16, 2009

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How do I replace 3 broken spokes on rear tire?


remove the tire and tube
move the cloth insulator side ways to expose the broken end of the spoke
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do the nut up firm ( same sound as the other spokes )
file the excess back down to the face o the nut
put the fabric back in place and put the tube and tire back on

Feb 24, 2016 | Cycling

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How do I change the back rim on the bike?


To change just the rim is a pretty big job, since you would have to remove every spoke and assemble a new wheel. But maybe you are asking how to straighten the wheel? If the bend is a bit of a wobble, and not a sharp kink, then you can usually true-up the wheel by adjusting the spokes. If this happened kind of suddenly, then you probably have a broken spoke. Pull on every spoke one at a time to see if that is the case. If none are broken, then you only need a spoke key. There are several styles, all pretty cheap, but they aren't all the same size. Look on YouTube for a how video on trueing bike wheels.
If you do have a broken spoke, and it is on the left side, then it's not too hard to replace. Just get the right size spoke and spoke key and you can do it without even removing the wheel. If you have a broken spoke on the right side you will almost certainly have to remove the wheel from the bike. There are several types with corresponding different tools and can be a bit tricky. Look for info on Parktool.com

Jun 21, 2012 | Cycling

1 Answer

I just god a new tire, tube, rim and spokes. Except i dont know how to install the spokes! How do i install spokes through the holes and to the rim? What is the correct order to put them in? What direction...


Thank you for the inquiry.
This is one of those projects in life that best requires special tools (Spoke Jig) and a lot of patience. I also recommend a couple of good quality spoke wrenches. The one that comes with your tool kit usually is for general emergency spoke tightening and minimal maintenance. Even at the shops there is not to many people that know how to do this well. It's time consuming and shop labor is expensive.
That being said here goes:
To get started you will need to know a couple of things:
  1. Spoke lacing pattern
  2. Rear sprocket/hub alignment position. (Chain must run true from front primary sprocket) this applies only if this is a rear wheel.
I've posted a link to some helpful pictures of wheel lacing on various bikes to give you a few tips and pointers. http://www.rcycle.com/wheellacing.html
Look at the spoke pattern on your other wheel to determine the direction to push the spokes through and determine the spacing pattern for the short or long spokes.
1) Lay the hub flat on a bench and install the spokes loosely in correct pattern. 2) Lay the rim over the spokes and push them through. Spoke direction corresponds to the receiving angle on the rim. Important to get started correctly than alternate. 3) Thumb tighten a couple of the nuts/ferrels loosely to hold rim in position. 4) Tighten nuts according to get the hub centered as best as possible (just to temporarily hold) 5) You can build a fixture with a couple of 2 x 4s as shown in the illustration or carefully clamp the bikes axel in a vice, not to damage the threads or pinch the axel nut.Horizontal position. 6) You will need to clamp a coat hanger or a heavy piece of wire to something solidly fixed to act as a reference guide. 7) Tighten spokes first for correct up/down centering then for left/right centering. 8) UP and Down: Position your gauge wire close to the top/front of the rim and rotate. Finger tighten and loosen the spoke nuts until you get the wheel running true for up/down motion. Keep going around and redoing until you get it as perfect as you can finger tight only. 9) Move you wire gauge to the side of the rim and repeat process. The front rim has a disc brake position to align for (not to critical) and the rear rim has a critical sprocket position to maintain. You will have to measure the sprocket offset to get it correct. Chain must run true. 10) Spin the rim on the axel for reference and Keep going around and tightening and loosening the spokes until you get the side alignment running true. May take a while and many spins. 11) Once you get the rim running true for both wobble and run out you are ready to slowly start tightening the spoke nuts with your spoke wrench's. Take you time and keep tightening in tiny amounts until you get tight and true. Tap the spokes as you go and listen for tension. 12) When you tap if you get a dull thunk - it's a little loose. If you get a ringing musical string sound you know you are tight and/or close depending on the amount of ring. Take your time.
Before you mount the tire be sure you mount the rim on the bike and run the axel in place to final check for front brake rotor alignment or real sprocket alignment. You may have to adjust.
I have always wrapped duct tape in the V-slot to hold the nuts and prevent spokes from coming up and puncturing the tube. Go around several times. Just maintain the groove so you can still have room to place the tire bead in to stretch for mounting.
Best wishes and good luck from a fellow biker/racer.
TF

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Broken spoke in rear wheel. What could have caused it and is a replacement simple?


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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1 Answer

A spoke on the rear wheel has snapped off how can I repair it?


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Rear spoke is broken, how do I remove the gears so I can fix it


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