Can anyone ID these crown races and bottom bracket...
09-17-12, 03:08 PM
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Can anyone ID these crown races and bottom bracket...
I have 3 crown races that seem more special than the others I have. One is a Stronglight of some sort and is aluminum. The other two are steel. The wider one appears to have a similar bearing race profile compared to the Dura-Ace 7400 headsets that I have. It is much shorter in height, however. It also has an internal lock ring like other Shimano headsets. The bronze colored one is steel and that is all I can tell you.
The bottom bracket is adjustable on both sides and is believed to be Italian threaded. It also uses cartridge bearings. There are no identifying marks that I have seen.
Also, I have these two headset lock washers. They are serrated like Stronglights that I have seen. They are aluminum and not steel. One also has a stud on the smooth side.
Thanks.
The bottom bracket is adjustable on both sides and is believed to be Italian threaded. It also uses cartridge bearings. There are no identifying marks that I have seen.
Also, I have these two headset lock washers. They are serrated like Stronglights that I have seen. They are aluminum and not steel. One also has a stud on the smooth side.
Thanks.
09-17-12, 04:58 PM
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The crown races are now tools for setting crown races. I have a old pitted CampI I use for that. The BB looks like a Suntour or SR cratridge bearing but I could be wrong.
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09-17-12, 07:17 PM
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Just a WAG, but I think the crown race on the right may be for a Raleigh sports type headset, the groove serves to keep the loose bearings in place during assembly.
09-18-12, 12:00 AM
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Also, I'm assuming these are Sturmey Archer type cogs. They aren't branded. Somebody want to confirm?
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09-18-12, 12:56 AM
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The headset fork crown race in the middle is most likely from a Stronglight A9 headset. A conical shaped steel race ring goes over the angled aluminum surface of that crown race then needle bearings in a plastic retainer, then on top of that is another steel race ring, then the bottom frame head tube race. The top race assembly is pretty much a mirror image of the bottom arrangement with similar parts. The other two crown races on each side of the Stronglight ar conventional ball bearing type crown races. As there's no marking on them, it's a bit challenging to figure out what brand and model they are.
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09-18-12, 01:00 AM
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the cog on the left is for a Sachs Torpedo (I think) and the one on the right is for a Shimano 3.3.3 (I think).
09-18-12, 09:36 AM
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The aluminum Stronglight crown race looks like it's from an A9 headset, or perhaps a Delta headset if there's an O-ring on the race.
09-18-12, 10:58 AM
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Closest thing I've found yet is a Gonzo BB. Lol. It resembles an OMAS as well. Apparently, this style was quite popular for a time.
09-18-12, 11:37 AM
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You think the BB is Italian? Could it be an Omas or one of those other boutique parts makers that made lightweight upgrade stuff for CampI components.
To clarify my remark about the crown races being tools, does anyone else do that? I use an old CampI race upside down when installing new crownraces. even if you have the correct tool it helps protect the race better.
To clarify my remark about the crown races being tools, does anyone else do that? I use an old CampI race upside down when installing new crownraces. even if you have the correct tool it helps protect the race better.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
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