What bottom bracket for my old ralegh flyer frame?

[Jack Moulsdale]

Sorry if this sounds like a stupid question, but at the beginning of this year i bought a 501 didn't change the bb and bought shitty replacement parts off of ebay. Doing 80+ miles a week its started to die. I am building a new bike, recently bought a donor bike, a raleigh flyer and it had bmx cranks on it, i stripped it completely to get it painted. Now i need to put a new bb and crankset on it. Does anyone have any recommendations of bb size and mid range crank set for my SS?
Thanks
Sorry for being a complete noobie. I'll post pictures of the frame all powder coated up

 

[4F]

What crankset have you got ?

 

[Jack Moulsdale]

no crankset purchased yet. It now seems like a dumbass move to not buy the crankset first haha. so are all british threads the same size? I was thinking of buying a campag crankset but dunno really. payday friday and it all kicks off

 

[4F]

More than likely it will be a 68mm shell unless it is an Italian frame where they will be 73mm

For my fixed conversion I used a UN55 68 x 108 BB (about £ 18 from my LBS) which gives me the ideal chain line. This is a square taper BB with the 108 being the spindle length.

Loads more information and parts here at Velosolo which are great for all things fixed / singlespeed

 

[Jack Moulsdale]

Thanks for your help, i just got a sugino 52t 165mm crank from ebay so i'm on the move for parts now, checking out velosolo now

 

[fossyant]

52 on a single speed. Hope it's flat ! Or running a 19 rear.

 

[Jack Moulsdale]

Well this is it, pretty sure atm im running 48-18 i could do with a bit more, i think 52s abit strong haha

 

[zigzag]

52t is a good and versatile chainring size for a typical ss bike. i run 52x20 for normal riding, and 52x16 when i want to go fast (like today):

regarding bottom bracket - it depends what type of chainset you have and where the chainring is attached, inside or outside

 

[Jack Moulsdale]

thanks alot, thats given me motivation to see the 52t through. And gorgeous bike btw the way. this is the crafty bugger

 

[Jack Moulsdale]

sorry i'll post some actual bike photos now haha, this is my daily at the minute

then i picked up this 50 bargain flyer

and because i've stripped it down and got it powder coated i feel i need to do it justice

 

[flying start]

Don't really have any input on this but I'm thinking of building a ss for commuting over the winter

Would like to keep a eye on how you get on post pics of your bike when finished mate ; )

 

[Andrew1971]

Missus feel pushed out now bike on the bed