Armstrong Consort build- 1950s English Lightweight
12-30-23, 04:45 PM
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I didn't like using an ancient English cottered BB, so I made my own! The spindle length is perfect for my 1946 Holdsworth. There was not much room for error! The spindle is made from 17-4 PH stainless steel, the cups are 303 stainless. By the way, there are two common sizes of cottered spindles, English is 5/8" and metric is 16MM. One should avoid unnecessary clearance between the crank arm and the BB spindle. Jim Merz
12-30-23, 04:54 PM
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I have a 1950’s Italian frame that could use a cottered bottom bracket, I have a set of FB cranks…
I must look to see if anyone makes a workable cottered cartridge with Italian threading for a double. Need to confirm the lengths.
at one time I could spend $300 or so and buy an ancient Campagnolo cottered bottom bracket. Did not do that.
bike does have a steel Campagnolo seatpost, so there is a bit of precedent.
12-30-23, 05:25 PM
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Didn't find any.
But that cottered unit with the plastic cups almost certainly has standard OD bearings, so pull them off and just get some Italian cups.
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12-31-23, 09:55 AM
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Thanks Russell. Just wrapping my head around the gearing options. Chain rings for the TA are somewhat expensive, and this build is meant to be "in house" so to speak. Turns out my 14-28 freewheel fiver cog is Simplex. I was thinking of sending it to Pastor Bob for renewal.
Other than Sheldon, any recommended calculator? His doesn't include 5 speeds.
Other than Sheldon, any recommended calculator? His doesn't include 5 speeds.
12-31-23, 10:01 AM
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I did this with a typical 14-28 5 speed.
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12-31-23, 10:46 AM
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Ah, I see! Thanks for showing me. Most of the time my terrain is relatively flat, with the odd steep climb if I'm riding in lake country or the big hills north of the city. You mentioned close gearing before, and pastorbobnlnh suggested 14-16-19-22-28 or 30, and I was thinking I might replace the 40T and 30T inner rings to have a 28T granny and a 42T or 44T middle.
12-31-23, 12:11 PM
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Ah, I see! Thanks for showing me. Most of the time my terrain is relatively flat, with the odd steep climb if I'm riding in lake country or the big hills north of the city. You mentioned close gearing before, and pastorbobnlnh suggested 14-16-19-22-28 or 30, and I was thinking I might replace the 40T and 30T inner rings to have a 28T granny and a 42T or 44T middle.
12-31-23, 04:55 PM
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I'm wondering if this Atom 77 Compact 6-speed might be the perfect fit for this special build?
I can also swap the 30T for a 28T.
I can also swap the 30T for a 28T.
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Last edited by pastorbobnlnh; 01-01-24 at 06:55 AM.
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01-01-24, 06:25 AM
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01-01-24, 07:53 AM
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01-01-24, 10:27 AM
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I read one of your posts on TA chainrings elsewhere, and found that UK supplier. Looks like they have 42T inner and 28T inner available. Playing around with Sheldon's calculator shows some modest changes, but may not be significant enough to necessitate replacement.
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01-01-24, 12:44 PM
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I wouldn't spend the money for two teeth typically but if you just got to have it you can go down to 26 and just figure that's your granny.
01-06-24, 05:50 PM
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@Ged117 would you mind sharing the serial number of your Armstrong? I'm wondering if it has the same format as FTWelder's Armstrong Tourmalet and my Dunelt of 50's vintage, xxxxx NO.
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01-06-24, 06:05 PM
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@Ged117 would you mind sharing the serial number of your Armstrong? I'm wondering if it has the same format as FTWelder's Armstrong Tourmalet and my Dunelt of 50's vintage, xxxxx NO.
01-06-24, 07:39 PM
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My Dunelt 185 NO. I suspect both frames made by Armstrong or maybe Phillips.
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01-07-24, 05:51 AM
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I'm curious about the story of the extensive delay. I imagine that the backlog of (lost?) shipping containers of all varieties, due to COVID, was to blame.
Humpfh! I may possibly receive a tire that went missing. Any more info from the frame's seller? Was he in Britain?
Here's an Armstrong number in the same place as referred-to, with the same sequencing. Second pic is Armstrong "3-speed" with Raleigh number on b.b. shell.
Humpfh! I may possibly receive a tire that went missing. Any more info from the frame's seller? Was he in Britain?
Here's an Armstrong number in the same place as referred-to, with the same sequencing. Second pic is Armstrong "3-speed" with Raleigh number on b.b. shell.
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Last edited by 1989Pre; 01-07-24 at 05:57 AM. Reason: Because I can
01-07-24, 01:06 PM
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S/n on outer surface of rear NDS dropout. Frank's Armstrong 15246 NO.
My Dunelt 185 NO. I suspect both frames made by Armstrong or maybe Phillips.
My Dunelt 185 NO. I suspect both frames made by Armstrong or maybe Phillips.
PXL_20240107_023951180 I'm curious about the story of the extensive delay. I imagine that the backlog of (lost?) shipping containers of all varieties, due to COVID, was to blame.
Humpfh! I may possibly receive a tire that went missing. Any more info from the frame's seller? Was he in Britain?
Here's an Armstrong number in the same place as referred-to, with the same sequencing. Second pic is Armstrong "3-speed" with Raleigh number on b.b. shell.
Humpfh! I may possibly receive a tire that went missing. Any more info from the frame's seller? Was he in Britain?
Here's an Armstrong number in the same place as referred-to, with the same sequencing. Second pic is Armstrong "3-speed" with Raleigh number on b.b. shell.
