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Old 08-25-07, 11:57 AM   #1
x_freeride_x
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Help w/ BMX 3-pc Crank Dissasembly

It's funny because I put this dang thing together but that was like 7 years ago and now I cant seem to get the right side off. Here's pictures:









Can anyone give me any tips on how to get it apart?

Once I get it out I want to clean the whole thing. Get the chrome parts shining as best as I can. And replace any critical parts. I think I need a new sprocket and freewheel but I'm not sure what gearing to get? And what sprockets will fit? I need a chain but which one,? What size and length? And I want to get some new cages for those pedals but how do I know which ones will fit?
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Old 08-25-07, 12:27 PM   #2
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assuming everything is already lubed and all the pinch bolts are loose, you need to get a 3pc crank spindle remover, which is basically a fancy bolt that you screw onto the spindle and hit with a hammer to drive it out of the crank arm, though the BB, and out the other side of the frame.
Douse everything with penetrating oil a few hours before you start. After such a long time those cranks are probably going to need a lot of hammerin'
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Old 08-25-07, 08:22 PM   #3
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Couldnt I just put a board or a piece of wood up against it and hammer it?
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Old 08-25-07, 09:40 PM   #4
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I cant get the big aluminum clip on the left side to come off either. I have the tiny little bolt all the way out and it wont come off. It's weird because it all went together so easily. What else am I missing here?
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Old 08-26-07, 10:29 PM   #5
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Anyone else wanna chime in? Any help would be appreciated. I cant wait to get this thing rolling again.
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Old 08-27-07, 08:22 AM   #6
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Black Widows are great cranks, but it looks like those have led a rough life. Anyway, you need a crank puller, like the Park CCP-4 (~$15). Or get a bike shop to do it.

My only set of Widows has a completely different style of bottom bracket. Is that aluminum clip on the left side threaded onto the spindle? If not, remove the retainer bolt, slip a penny into the slot and thread the retainer bolt in backwards. Should spread it out easily.
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Old 08-29-07, 07:48 PM   #7
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Ok guys and gals. Justin on the BMX forum hooked me up and told me how to get it apart. There was no puller involved.
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Old 08-29-07, 09:43 PM   #8
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I got my bmx crank off without any tools
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Old 08-30-07, 02:23 PM   #9
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how?
(future reference)
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Old 08-30-07, 03:32 PM   #10
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The little clamp on the opposite side as the sprocket is also a bolt and it screws off clockwise. That is all that was holding it together. Once I took that off the axle came out and I was able to pop out the bearings.
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Old 08-30-07, 05:32 PM   #11
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hah, I thought that had already been tried. lol.

wouldn't you need a wrench to remove it though? or was it not very tight?
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Old 08-30-07, 05:33 PM   #12
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hah, I thought that had already been tried. lol.
Thanks, make me feel more dumb than I already do.


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wouldn't you need a wrench to remove it though? or was it not very tight?
Yeah, I used a huge crescent wrench.
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Old 08-30-07, 05:47 PM   #13
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Sorry not without ANY Tools. Not any special ones. I used a monkey wrench.
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