RADBMX.CO.UK

Technical & Reference Section => Tech and Restoration => Topic started by: Old School on September 13, 2015, 12:00 PM

Title: Dumb question but would would I need to complete this crank?
Post by: Old School on September 13, 2015, 12:00 PM

http://m.ebay.co.uk/itm/Sugino-Cromo-OPC-175-One-Piece-Crank-Raleigh-Burner-Old-School-BMX-/271979142025?nav=WATCHING_ACTIVE

Currently building my Silver Streak and need a little help on the nitty gritty names of these things please!
What will I need to complete the crank in the link above?

Pedals obviously!
Chainring obviously!
What else??

Cheers :daumenhoch:





Sent from my iPhone using Tapatalk

Title: Re: Dumb question but would would I need to complete this crank?
Post by: deeman on September 13, 2015, 12:15 PM

a bottom bracket set 24tpi  :daumenhoch:

like this......

http://www.ebay.co.uk/itm/Tange-24Tpi-Bmx-Bottom-Bracket-Nos-Burner-Old-Mid-School-/171904000179?hash=item280646e0b3

Title: Re: Dumb question but would would I need to complete this crank?
Post by: Retrodan72 on September 13, 2015, 12:16 PM

You need a bottom bracket, I normally use a Tange, a 24 TPI (thread per inch).:

What I tend to do then, if I use a Sugino crank is use Sugino components, so a Sugino spider, 44t Sugino chainring, and I use unbranded chainring bolts, but you could use Sugino, if you're feeling flush.  :daumenhoch:

Title: Re: Dumb question but would would I need to complete this crank?
Post by: CustardLips on September 13, 2015, 01:24 PM

Still Tange but a couple of cheaper alternatives.  :daumenhoch:

http://pages.ebay.com/link/?nav=item.view&id=281795469756&alt=web

http://pages.ebay.com/link/?nav=item.view&id=271981437027&alt=web

Title: Re: Dumb question but would would I need to complete this crank?
Post by: Old School on September 13, 2015, 01:49 PM

Great thanks guys!
Have bought the Sugino bolts already!
And got my eye on the spider and 44T chainring too ;)

Are there different Tange bottom bracket models?

:daumenhoch:





Sent from my iPhone using Tapatalk

Title: Re: Dumb question but would would I need to complete this crank?
Post by: CustardLips on September 13, 2015, 02:37 PM

Quote from: Old School on September 13, 2015, 01:49 PM

Are there different Tange bottom bracket models?

Sent from my iPhone using Tapatalk

Probably a few variarions but all basically the same.  :daumenhoch:

Or get yourself one of these better than the Tange bb's imo.  ;)

http://pages.ebay.com/link/?nav=item.view&id=261376412414&alt=web

Title: Re: Dumb question but would would I need to complete this crank?
Post by: Old School on September 13, 2015, 02:48 PM

Quote from: CustardLips on September 13, 2015, 02:37 PM

Quote from: Old School on September 13, 2015, 01:49 PM

Are there different Tange bottom bracket models?

Sent from my iPhone using Tapatalk

Probably a few variarions but all basically the same.  :daumenhoch:

Or get yourself one of these better than the Tange bb's imo.  ;)

http://pages.ebay.com/link/?nav=item.view&id=261376412414&alt=web

Thanks! That's 24T, does it matter what size "T" I go for?


Sent from my iPhone using Tapatalk

Title: Re: Dumb question but would would I need to complete this crank?
Post by: CustardLips on September 13, 2015, 02:56 PM

That means 24TPI (the thread size). The thread on the crank has to match the thread on the bb.  :daumenhoch:

If you're referring to number of teeth on the chainring you can have what you want... the preferred old school gear ratio being 44-16.  :daumenhoch:

Title: Re: Dumb question but would would I need to complete this crank?
Post by: Old School on September 13, 2015, 03:40 PM

Cool, all making sense!

And finally, I assume a Silver Streak bottom bracket only fits 24TPI?

: daumenhoch:


Sent from my iPhone using Tapatalk

Title: Re: Dumb question but would would I need to complete this crank?
Post by: CustardLips on September 13, 2015, 03:55 PM

Quote from: Old School on September 13, 2015, 03:40 PM

Cool, all making sense!

And finally, I assume a Silver Streak bottom bracket only fits 24TPI?

: daumenhoch:


Sent from my iPhone using Tapatalk

No... a 28TPI bottom bracket will also fit but the sugino crank in the link is 24TPI. So you need a 24TPI bottom bracket.  :daumenhoch:

Title: Re: Dumb question but would would I need to complete this crank?
Post by: Old School on September 13, 2015, 05:30 PM

Well I believe that was the original crank, spider and chainring on the original SS so that's what I'm going for!
Cheers guys :daumenhoch:


Sent from my iPhone using Tapatalk

Title: Re: Dumb question but would would I need to complete this crank?
Post by: Old School on September 13, 2015, 08:23 PM

C
Sugino chainring purchased!


Sent from my iPad using Tapatalk