Hey I'm not knocking OPC's, I was just looking for something different to do with one of the two WM frames I have when I stumbled on that Core 77, then like an idiot went out looking for a Profile Imperial sprocket... and found one pretty cheap! If the dang thing would have fit the OPC I never would have initiated this thread. Now I've opened up a whole new can of worms... it's a "Life Experience" thing!
most sealed 3 piece cranks never need greased like a one piece crank bearings do, so i would go sealed 3 piece cranks in a off road conditions !
I know this is an old thread, but I will revive because I have a few questions. 1. Is there a (threaded) BMX spindle that I can use with the standart one piece bearings? Edit - is this what I need: 2. Can I use BMX three piece cranks with an offset chainring (that I currently use with my one piece crank)? 3. Are BMX crankarms always made for 9/16 pedals? 4 Has anyone put a three piece BMX cranks in a Felt tankframe and are there any clearance issues that might occur?