if using cro-moly bmx style cranks in this frame (73mm shell) you will need a long spinfle..on this application I used a 6" with a euro BB ,longer cause of the e-13 setup..if no chain guide the 5.75 spindle works best with a 73mm shell which is the next size up from the standard BMX spindle still

 oh cool!!!!! thaanks
yeah im trying to find out for like mtb cranks but it doesnt say what the bb shell is but im pretty sure it will fit
here is the link to what im thinkin bout getting for it
www.pinkbike.com/photo/5645894/#cid7492258

 Fit Bike Co cro=moly cranks..175 in lenth and the spindle is an extra long profile splined spindle

 what size cranks/bb are you running on this????

 so do you think a 73-83 bb will fit?

 If you give me that bike for 800 i will buy it on april

 Size of frame?