What headset with hexagonal cups is this?
01-01-22, 07:02 PM
#1
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What headset with hexagonal cups is this?
I found this Raleigh Competition and it has a headset with "hexagonal" top and bottom cups. Can any one identify the make and model? Thanks
Last edited by bark_eater; 01-01-22 at 07:07 PM.
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01-01-22, 07:09 PM
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Yes sir..
01-01-22, 07:20 PM
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Brampton Alatet
https://velobase.com/ViewComponent.a...m=111&AbsPos=9
those are not hexagons
count the flats; those are decagons
headlugs are Prugnat 62d
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Brampton Alatet
https://velobase.com/ViewComponent.a...m=111&AbsPos=9
those are not hexagons
count the flats; those are decagons
headlugs are Prugnat 62d
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Last edited by juvela; 01-01-22 at 07:28 PM. Reason: addition
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01-01-22, 07:34 PM
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Close. Decagons but no "teeth"
But here's one like mine. Thanks. The one I have is heavily indexed, but very cool looking. Any thoughts as to whether is worth finding another one?
But here's one like mine. Thanks. The one I have is heavily indexed, but very cool looking. Any thoughts as to whether is worth finding another one?
Last edited by bark_eater; 01-01-22 at 07:42 PM.
01-01-22, 07:47 PM
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production life was long and there are variations
here is another -
note pattern of lock nut
https://velobase.com/ViewComponent.a...=111&AbsPos=10
quality of finish varies
your example is relatively late production and exhibits indifferent finish
races take 26 5/32" balls each and are not rectified after plating
head cup diameter is 30.0mm
fork crown race i.d. is 26.9mm
stack height is 36.1mm for your version; it is a bit greater for the toothed version
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production life was long and there are variations
here is another -
note pattern of lock nut
https://velobase.com/ViewComponent.a...=111&AbsPos=10
quality of finish varies
your example is relatively late production and exhibits indifferent finish
races take 26 5/32" balls each and are not rectified after plating
head cup diameter is 30.0mm
fork crown race i.d. is 26.9mm
stack height is 36.1mm for your version; it is a bit greater for the toothed version
-----
Last edited by juvela; 01-02-22 at 07:08 AM. Reason: addition
01-01-22, 08:13 PM
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I have a NOS Stronglight Competition headset with the V races. Any thoughts on relative "performance"?
01-01-22, 08:50 PM
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these have rectifed after plating races which a plus
the V design spreads loads for each ball to four points instead of two
V races are less forgiving in terms of self-centreing than traditional cone & cup designs
so fitment is more critical
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these have rectifed after plating races which a plus
the V design spreads loads for each ball to four points instead of two
V races are less forgiving in terms of self-centreing than traditional cone & cup designs
so fitment is more critical
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01-01-22, 09:24 PM
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Thanks!
01-01-22, 09:29 PM
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TDC made a headset in a similar style.
often fitted to Bob Jackson’s in the 70’s
often fitted to Bob Jackson’s in the 70’s
01-02-22, 07:25 AM
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one possible complication of fitting a Stronglight V-4 is the fork crown race
its i.d. is stepped with the lower portion for fitment to the fork crown being 27.0mm
the upper half is smaller and can be a problem in cases where the fork crown race seat is too tall
if you look closely at the manufacturer's illustration below you shall be able to see the feature -
stack height is greater than Alatet at 39.3mm
races also take 26 5/32" balls each
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one possible complication of fitting a Stronglight V-4 is the fork crown race
its i.d. is stepped with the lower portion for fitment to the fork crown being 27.0mm
the upper half is smaller and can be a problem in cases where the fork crown race seat is too tall
if you look closely at the manufacturer's illustration below you shall be able to see the feature -
stack height is greater than Alatet at 39.3mm
races also take 26 5/32" balls each
-----
01-02-22, 09:54 AM
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Those were more durable in that the balls had two contact tracks on the race rather than just one, but they were very fussy about alignment. The later roller bearing models were more accommodating.
01-02-22, 09:59 AM
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Magistroni made a headset with octagonal cups. The notched lockring on the OP's headset might be anomalous:
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01-02-22, 11:44 AM
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No steps on my example. The bit about being more dependent on alignment than needle bearing head sets is a little concerning, but I'm planning on keeping this bike, so it may be worth sending it out to a framebuilder for alignment and faceing.
Last edited by bark_eater; 01-02-22 at 11:50 AM.
01-02-22, 11:58 AM
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Not Magistroni, Way-Assauto on the Bot.
VeloBase.com - Component: Way-Assauto (flats on cups)
P1030664 on Flickr
VeloBase.com - Component: Way-Assauto (flats on cups)
P1030664 on Flickr
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01-07-22, 04:45 PM
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thank you for this clarification
the fitting in the middle of the photo appears too tall to be a fork crown race
it looks more like an upper head tube race
the fork crown race of the Competition V4 set has a thickness/height of 5.2mm
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thank you for this clarification
the fitting in the middle of the photo appears too tall to be a fork crown race
it looks more like an upper head tube race
the fork crown race of the Competition V4 set has a thickness/height of 5.2mm
-----
01-08-22, 06:30 PM
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I was digging through my stuff and I actually have 2 sets of Stronglight Competition headsets. The second has the step in the crown race.
