i bought a mongoose freestyle bmx (not sure what model, i know its a mongoose but i always wanted one since i was a kid) some time back and now i want to change the stock cranks to a 3-piece cranks. just for show really. im not looking for performance, i dont race, i dont know the brands, i just want something that will work and not brake while i cruise down the beach and around downtown. what works/fits and what should i be looking to pay for this?
You won't break any three-piece cranks unless you crash the bike over and over hard or you're landing hard on the ramps. Anyway, your best bet is to check out Dan's Comp and shop accordingly. You can get good cranks from Eastern for as little as $80. You'll need to usually buy a BB too, so keep that in mind when choosing a crank set.
OP said they want to change to 3 piece cranks, so it is possible that the bike has a 1pc crank. If that is the case, a bottom bracket conversion kit is needed to adapt from american to euro style bottom bracket to run 3pc cranks
There is no "need" for a conversion kit to make your bottom bracket compatible with "euro" in order to run 3 piece cranks, 3 piece cranks are available for all sorts of bottom bracket styles. The euro conversion is one possible option but is not the most cost effective.
It is reasonable to assume that the OP has one piece cranks as there would be no reason for him to post the question otherwise. One piece cranks are only used on bikes with an "American" bottom bracket. So the most straight forward conversion would be to buy 3 piece cranks that come complete with an American bottom bracket. If it is just for show then it doesn't get much cheaper than this http://www.danscomp.com/451053.php?cat=PARTS
You may want to spend a bit more and get a sealed bearing bottom bracket.
Once you get the cranks there are plenty of sites that have the installation instructions.
Keep in mind that the pedals off a one-piece crank use a 1/2 inch thread and a 3 piece uses 9/16 so you would need new pedals as well.
Spoken like a true non-racer. Euro is the standard for modern BMX race frames and has been the mountain bike standard for years.
As the bearings are smaller they wear quicker than an American, Spanish or Mid bottom bracket but they are lighter, easy to install, spin like a top, and can be replaced in minutes. The first generation with only a single bearing on each end tended to wear very quickly but now most have two bearings per side and last a lot longer. They have their place in the BMX world and are definetly not crap.
I thought Standard still made an American BB frame, but I searched and it was wrong. But I know the FBM Camaro had a Mid BB. But like andymac said, Euro BB's are easily the most popular BB in racing, and they are very easy to install.
i can see where threading the bearings right into the frame would be enjoyable, just because of the ease of installation, but i still think they arent strong enough. race bikes and mountain bikes only. not on any other use of a bmx bike. not even if its just for show.
Originally Posted by seau grateau
The brake lever is on the handlebars, so no one can complain about that.
Originally Posted by Scrodzilla
If that was my house and you put your stupid bike in my flower garden to take a picture, I would come outside in my underwear and light you on fire.