Help with my sproket please!

[BippyMurkus]

I did post this in the bicycle maintanence bit, but i think cause it's a bmx you guys might be more helpful,...

I have a 40 ish toothe chain ring/sproket on my bike... i've got a 30 something tooth i wanna put on, how would i go about taking my old sproket off??? it's a 3 piece crank too... ive got some pictures here...

http://i173.photobucket.com/albums/w61/joey12310/sproket1.jpg

http://i173.photobucket.com/albums/w61/joey12310/sproket2.jpg

[Street rider]

is there like a threaded cone washer on the back side of it?

[FuzzyRyder]

its a bunk unsealed set so you have to take the spindle right out, there should be a cone nut or something resting up against the sprocket you just unthread it and slide the sprocket off the non drive side.

[Street rider]

just that simple.

[minichamp31]

Yeah I thought it was that simple too, but the factory put that cone washer on so freaking tight it was ridiculous. I eventually got it though.

[Street rider]

i had the same thing when i got rid of my stock parts.

[BippyMurkus]

AHH, okay, you guys are much more helpful that all the others people here, ill try it tonight or tomorow!

[ascend]

The people in the mechanics forum don't see a lot of BMXs, and for some reason BMX parts are never compatible with anything else