Moulton Speed 12

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David Brierley

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Mar 27, 2023, 4:39:08 PM3/27/23
to Gentleman Cyclist, Kit Spackman
Don’t know if initial attempt to send was sent or not.  My Moulton has two chainrings, 3 speed SA, and 2 external gears on the hub.  Shifters for the crankset and external gears, and the trigger shifter.  Works fine.  

Dave Brierley
CT ABCE

Robert Beck

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Mar 27, 2023, 5:02:30 PM3/27/23
to gentlema...@googlegroups.com, Kit Spackman
Dave, That is a beautiful squash ball bike. The drums give reliable stopping power and get rid of long reach spongy problems. I like the use of an SA chain stay cable stop. Are those Simplex bar ends? I have patinated example of the “Huffy” version of the Mk I with alloy rims and S5 into the FW hub. 




On Mar 27, 2023, at 3:38 PM, 'David Brierley' via Gentleman Cyclist <gentlema...@googlegroups.com> wrote:

Don’t know if initial attempt to send was sent or not.  My Moulton has two chainrings, 3 speed SA, and 2 external gears on the hub.  Shifters for the crankset and external gears, and the trigger shifter.  Works fine.  

Dave Brierley
CT ABCE


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Stephen T Brink

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Mar 27, 2023, 6:37:27 PM3/27/23
to gentlema...@googlegroups.com, Kit Spackman
I want to know the shift pattern to get through all those gears in order.
Steve

Mark Stonich

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Mar 27, 2023, 9:11:15 PM3/27/23
to gentlema...@googlegroups.com
Lovely bike! You’ve got me wondering if the gent who bought Jane’s MkIII is bored with it yet.

BTW my favorite version of 2 cogs on an SA 3 spline driver is one dished 1/8” SA cog, a 1mm spacer and a modified cassette cog, shifted with a Huret Svelto. I like a 19/22 cog pair as it perfectly half steps an AW. But in the examples shown, I was extending the range of an FM. 


 2 advantages to using the Svelto are that travel is easily limited to 2 cogs and they look older than they are. Don’t look out of place on bikes from the ’50s, maybe even ‘40s.

Mark Stonich
Bikesmith Design and Fabrication LLC
5349 Elliot Ave
Minneapolis MN USA
Ph. +1 (612) 710-9593

On Mar 27, 2023, at 3:38 PM, 'David Brierley' via Gentleman Cyclist <gentlema...@googlegroups.com> wrote:

Don’t know if initial attempt to send was sent or not.  My Moulton has two chainrings, 3 speed SA, and 2 external gears on the hub.  Shifters for the crankset and external gears, and the trigger shifter.  Works fine.  

Dave Brierley
CT ABCE


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Tim's Bitstream

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Mar 27, 2023, 11:16:04 PM3/27/23
to gentlema...@googlegroups.com
Ah, Huret! Masters of a Rube Goldberg sort of minimalism.

Kit Spackman

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Mar 28, 2023, 2:18:05 AM3/28/23
to gentlema...@googlegroups.com
The Mk 3's have a slightly different frame geometry to earlier Moultons which makes it easier, and a lot neater, to fit a front mech to the seat tube. 

And Huret have always been a bit 'off the wall' with their mechs, but they're also very good and built like a tank! I've had an Alvit 1900 on my Safari since 1966 or so, and it's never failed. But I havea  couple of spares in stock, just in case. 🙂

Regards
Kit
From: gentlema...@googlegroups.com <gentlema...@googlegroups.com> on behalf of Mark Stonich <bikesmi...@gmail.com>
Sent: 28 March 2023 01:11
To: gentlema...@googlegroups.com <gentlema...@googlegroups.com>
Subject: Re: [Gentleman Cyclist] Moulton Speed 12
 

David Brierley

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Mar 30, 2023, 4:34:53 PM3/30/23
to gentlema...@googlegroups.com, Kit Spackman
Hi Robert

Yes, the drum brakes work great.  The bar end shifters are Suntour friction ones.  I am very pleased with them.  I have no set shifting sequence.  Trial and error and experience are the guidelines.  The rims are aluminum and the tires are high pressure slicks.

Cheers, Dave Brierley
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