3 piece crank

[captmatt]

im wanting to put on 3 piece onto my bruiser....have no clue what size bottom bracket my bike has, all i know its a bruiser and i got it from beachbikes.com...and im wanting to change it up a bit. im an old bmx'er, a profile crank in my time fit any bike i ever thought of owning. time for slow and low. thanks all. :shock:

 

[Rat Rod]

It depends on what type of BB you want to use. I've never installed a sealed bearing set like in the English BBs. I've used the following kit to install a 3 piece crank on a cruiser and it works great.

http://www.bikepartsusa.com/cgi-bin/cat ... ce=froogle

Here is the American to Euro converter...

http://www.universalcycles.com/shopping ... p?id=22473

 

[deorman]

There are 2 common methods for changing over 1-piece to 3-piece, both require some measuring and arithmatic. First is to buy an adapter kit that has a crank designed to work w/1-piece press fit bearings. Some guys her can tell you where to buy, or even sell you one. The other old school way is to weld the crank hanger from an old 10 or 21 speed bike inside the 1-piece hanger. If you haven't done an intro posting you should, otherwise you may get ignored. :|

 

[socal_jack]

The third way is get a new or used bmx 3-piece like the Profile you mentioned, you can find the sealed Amercian bearing/cup sets for the 19mm or 22mm bmx spindles online. In fact you can sometimes find Euro, Spanish, or American BB sets for the same crank and spindle.

 

[captmatt]

thank you RAT ROD we need to meet up sometime man, we're in the area.