Bullseye cranks

elite504 · Nov 1, 2013

Stealing an image from the BMX museum page above, this is the BB my setup runs with. The outer race id threaded with flats to install into to a threaded BB shell. Open to the elements.
You can see it came with a myriad of washers to adjust the chainline with

Swede · Nov 3, 2013

Interesting. I guess some of them are not used?

Another question... What does this do? http://www.retrobike.co.uk/forum/viewtopic.php?t=158449 As I can't figure out where it goes

redfern1950s · Nov 3, 2013

Hi,
Its kind of a safety feature, it goes straight throught the axle and should stop your crank arm from falling off, if the pinch bolt was to fail.

Used to see them back in the good old days of bmx racing.

Martin

Swede · Nov 3, 2013

Thanks, but what about the last photo? Where does that go?

yanee71 · Nov 3, 2013

that little piece is for safety , holds legs together
like to shimano saint , oops shimano is like to bullseye :mrgreen:

http://www.bikeman.com/store/graphics/0 ... K8206B.jpg

here my cranks
first and second generation ,
are third gen. builded when bullseye came again in production ?

Swede · Nov 3, 2013

Perfect. Difficult to tell from the first picture in the other thread what the scale was but these pictures are great, thank you.

24pouces · Nov 5, 2013

I have received a crankset from USA this week-end.
I have to strip the ugly glycero paint on it, and the spider is now shining.
But I would swap the bolts which fix the spider on the steel circle of the arm. Who know what size they are (diameter and thread…)
Nothing is fitting in all my bolts boxes and I think it's an US size…

gil_m · Nov 5, 2013

Watch the bolts on the Bullseye stuff, it's all Imperial pitch....

The small clamp bolt often gets replaced with a metric bolt and this kills the threads, same goes for the spider/crank arm interface and I would image the same on the Gen 1 spider mount as well

24pouces · Nov 5, 2013

And don't you know the exact size ? (I admit that I understand nothing in no metric sizes :mrgreen: )

24pouces · Nov 6, 2013

Stupid question : what''s difference between european and US BB threads ?
Someone could sale me some Bullseye BB cups but they fit on american…

Bullseye cranks

elite504

Swede

redfern1950s

Retro Guru

Swede

yanee71

Swede

24pouces

gil_m

24pouces

24pouces

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