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 Post subject: Re: Bullseye cranks
PostPosted: Wed Nov 06, 2013 6:47 pm 
Gold Trader
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Joined: Thu Aug 02, 2012 11:48 am
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Location: Somerset
24pouces wrote:
Stupid question : what''s difference between european and US BB threads ?
Someone could sale me some Bullseye BB cups but they fit on american…


Does this help? http://www.danscomp.com/serve.php?serve ... iagram.htm I don't believe there's a US BB thread as it's my understanding (but I've only just started learning about this stuff, so I could be wrong) that a Bullseye American BB would be a press fit only.


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 Post subject: Re: Bullseye cranks
PostPosted: Thu Nov 07, 2013 12:28 pm 
.o.T.M Triple Crown Winner
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Location: Sunny South of France
Swede wrote:
24pouces wrote:
Stupid question : what''s difference between european and US BB threads ?
Someone could sale me some Bullseye BB cups but they fit on american…


Does this help? http://www.danscomp.com/serve.php?serve ... iagram.htm

yes !
:D


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 Post subject: Re: Bullseye cranks
PostPosted: Thu Nov 07, 2013 12:40 pm 
Sticker Master
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Joined: Tue Jul 05, 2005 4:22 pm
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Location: North Yorkshire
If you want to learn about Imperial and Metric threads just google it....

The term American BB tends to refer to a BMX size Bottom bracket, Bullseye BB were either a BMX sized adaptor with smaller press fit bearings or a normal standard British threaded BB, with very poorly sealed bearings. It was only the Pace RC100 bearings that were a press fit, with grease injection system and slighlty better seals


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 Post subject: Re: Bullseye cranks
PostPosted: Thu Nov 07, 2013 7:11 pm 
MacRetro rider
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Joined: Fri Mar 09, 2007 2:11 pm
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Location: DUNDEE
And I've used Gil's shims since I joined retrobike, worth the money and you hardly notice them.

I run a hope external BB - their bearings last much longer (I do use a bit of side pressure on them because I am jamming on a 68mm spindle length on a 73 shell - isn't good for most external bearings.)


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 Post subject: Re: Bullseye cranks
PostPosted: Thu Nov 07, 2013 7:24 pm 
Retro Guru
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Joined: Mon Mar 24, 2008 12:17 pm
Posts: 623
Location: Camping,with Slade.
Just had my Bullseye cranks powder coated,the threads for the spider to crank fixing are 1/4" UNF thread,as I got a tap to clean the threads prior to reassembly,they are bloody awesome cranks by the way.


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 Post subject: Re: Bullseye cranks
PostPosted: Mon Nov 11, 2013 6:27 pm 
retrobike rider / Gold Trader
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Location: In the Woods. . .
Confirm 1/4" UNF as per the hub axles.


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 Post subject: Re: Bullseye cranks
PostPosted: Mon Nov 11, 2013 7:10 pm 
.o.T.M Triple Crown Winner
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Thanks for the size of the bolts...
I have to powder coated mine too, so I would need to clean the threads, and I think about taking new bolts too :D


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 Post subject: Re: Bullseye cranks
PostPosted: Fri Dec 13, 2013 11:42 am 
Gold Trader
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Joined: Thu Aug 02, 2012 11:48 am
Posts: 977
Location: Somerset
redfern1950s wrote:
Hi,
Just read your thread..

And have come across these on ebay :

http://www.ebay.co.uk/itm/BULLSEYE-EURO ... 3cd7c3b21f

Not sure if they are what you want, expensive as well..

Bye for now..

Martin



Ok, I couldn't resist it.... I phoned the guy up and bought the BB before the bid ended :oops:. Interestingly the cups are Bullseye but the bearings are Enduro MR 2437 LLB's. I've been in touch with Enduro and these are still available and they initially thought the shim/reducer were the ones they make for SRAM Truvativ BB's but they couldn't find any sales records of these to Bullseye, plus the SRAM spindle is 22mm spindle so I guess Bullseye made this as well as the cups(?).

They also pointed out that the shim has been fitted the other way around i.e. with the flange on the outside. Any ideas why? Nader any chance of some close ups?


Attachments:
Bullseye Euro BB.jpg
Bullseye Euro BB.jpg [ 55.15 KiB | Viewed 461 times ]
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untitled.jpg [ 29.26 KiB | Viewed 461 times ]
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 Post subject: Re: Bullseye cranks
PostPosted: Fri Jan 10, 2014 12:31 pm 
Retro Guru

Joined: Fri Dec 14, 2012 5:19 pm
Posts: 486
Location: Italy
Hi Mates,

I recently bought a nice Bullseye 2nd gen. crankset complete with Bulls spider for 3 chainrings

but I need your help about bolts size on the above spider :? :? :?

two different bolts are required :

- bolts for fixing the spider on the driveside crank ( fortunately I already have )
- bolts for fixing the inner small chainring ( I need this - see below photo )

I've found a previous thread were 1/4"-28 was mentioned as bolt size but which one ??

Thank you very much to everyone :wink:


Attachments:
File comment: Bolts
100120141936.jpg
100120141936.jpg [ 64.69 KiB | Viewed 439 times ]
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 Post subject: Re: Bullseye cranks
PostPosted: Mon Jan 13, 2014 8:14 am 
Retro Guru

Joined: Fri Dec 14, 2012 5:19 pm
Posts: 486
Location: Italy
Hi Mates,

any good news for me about bolts size ??? :roll:

Thank you very much :wink:


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