Anyone making dual fixed gear cogs?
08-01-20 | 07:40 AM
#1
Thread Starter
Senior Member
Joined: Dec 2005
Posts: 6,656
Likes: 145
From: Long Island, NY
Anyone making dual fixed gear cogs?
Is anyone currently making and selling dual fixed gear cogs?
Surly made one called the Dingle, and Wabi also sold a dual cog at one point, but they are both discontinued.
If you don’t know what I’m referring to, here is an example of a Surly Dingle cog....
https://www.harriscyclery.net/product/surly-dingle-dual-fixed-gear-cog-17-19-teeth-3-32-2464.htm
Surly made one called the Dingle, and Wabi also sold a dual cog at one point, but they are both discontinued.
If you don’t know what I’m referring to, here is an example of a Surly Dingle cog....
https://www.harriscyclery.net/product/surly-dingle-dual-fixed-gear-cog-17-19-teeth-3-32-2464.htm
08-01-20 | 08:42 AM
#2
Senior Member
Joined: Oct 2014
Posts: 14,173
Likes: 5,301
From: Portland, OR
Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder
I had TiCycles make me an 1/8" 17-21 to create a mountain fixed 3-speed (46-any small cog down to 12, 42-17, 36-17 with an 1/8" triple up front. 3 separate chainlines. Works really well but took a great deal of planning, the double cog, custom chainring bolts and a fix-fix MIche hub respaced to a few mm's dish./ Also a short Phil Wood BB to bring the chainline in. I ran the third ring outside the normal outer. (Close to the crank but that didn't matter since I have no FD.
For the double sprocket, the 21 is flipped. This puts the chain very close to the spokes but since noting is moving with regard to its neibors, contact (within reason) doesn't matter. Likewise chainrings can be so close the chain hils its neighbor and gouges grooves with the pins, Once grooves are gouged, no more contact.
Fun project, And now a really good solid ride I can take into real hills as a 67 yo.
Ben
For the double sprocket, the 21 is flipped. This puts the chain very close to the spokes but since noting is moving with regard to its neibors, contact (within reason) doesn't matter. Likewise chainrings can be so close the chain hils its neighbor and gouges grooves with the pins, Once grooves are gouged, no more contact.
Fun project, And now a really good solid ride I can take into real hills as a 67 yo.
Ben
08-01-20 | 09:43 AM
#3
Thread Starter
Senior Member
Joined: Dec 2005
Posts: 6,656
Likes: 145
From: Long Island, NY
I had TiCycles make me an 1/8" 17-21 to create a mountain fixed 3-speed (46-any small cog down to 12, 42-17, 36-17 with an 1/8" triple up front. 3 separate chainlines. Works really well but took a great deal of planning, the double cog, custom chainring bolts and a fix-fix MIche hub respaced to a few mm's dish./ Also a short Phil Wood BB to bring the chainline in. I ran the third ring outside the normal outer. (Close to the crank but that didn't matter since I have no FD.
For the double sprocket, the 21 is flipped. This puts the chain very close to the spokes but since noting is moving with regard to its neibors, contact (within reason) doesn't matter. Likewise chainrings can be so close the chain hils its neighbor and gouges grooves with the pins, Once grooves are gouged, no more contact.
Fun project, And now a really good solid ride I can take into real hills as a 67 yo.
Ben
For the double sprocket, the 21 is flipped. This puts the chain very close to the spokes but since noting is moving with regard to its neibors, contact (within reason) doesn't matter. Likewise chainrings can be so close the chain hils its neighbor and gouges grooves with the pins, Once grooves are gouged, no more contact.
Fun project, And now a really good solid ride I can take into real hills as a 67 yo.
Ben
08-01-20 | 10:43 AM
#4
Clark W. Griswold
Joined: Mar 2014
Posts: 18,356
Likes: 6,677
From: ,location, location
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
I have a dingle cog that I believe was mounted but can assure all that is completely un-used if you are interested PM and I am willing to work out a deal.
Though the TiCycles idea sounds pretty rad.
Though the TiCycles idea sounds pretty rad.
08-02-20 | 08:03 AM
#5
Not lost wanderer.
Joined: Jan 2013
Posts: 3,685
Likes: 1,425
From: Lancaster, Pa
Bikes: Cambodia bike,2012 Fuji Stratos...
I have both a Surly Dingle cog in 17 -21 and a Maeda double freewheel in both 17-21 and 16-20
I have plans to change my 73 SuperCourse to a double dingle speed some day
Here it is as a dingle speed freewheel
I have plans to change my 73 SuperCourse to a double dingle speed some day
Here it is as a dingle speed freewheel
08-03-20 | 07:48 AM
#7
Not lost wanderer.
Joined: Jan 2013
Posts: 3,685
Likes: 1,425
From: Lancaster, Pa
Bikes: Cambodia bike,2012 Fuji Stratos...
https://www.bikemonger.co.uk/surly-d...cogs-152-p.asp
has at least one 17-21 dingle cog
these have the 17-19 and the 17-20 I think
https://www.singlespeedshop.com/Sing...ml?language=en
has at least one 17-21 dingle cog
these have the 17-19 and the 17-20 I think
https://www.singlespeedshop.com/Sing...ml?language=en
08-03-20 | 11:33 AM
#8
Thread Starter
Senior Member
Joined: Dec 2005
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From: Long Island, NY
these have the 17-19 and the 17-20 I think
https://www.singlespeedshop.com/Sing...ml?language=en
https://www.singlespeedshop.com/Sing...ml?language=en
08-03-20 | 12:37 PM
#9
Senior Member
Joined: Nov 2010
Posts: 3,503
Likes: 619
I assume it is a supply and demand issue. Lack of demand means they no longer supply. If enough folks wanted them they'd be foolish not to continue offering them. Has anyone contacted them to inquire if they have any old stock? Sometimes manufacturers hold onto some stock in the event they have to replace due to warranty claims and such.
08-03-20 | 09:49 PM
#10
Not lost wanderer.
Joined: Jan 2013
Posts: 3,685
Likes: 1,425
From: Lancaster, Pa
Bikes: Cambodia bike,2012 Fuji Stratos...
Here is a 16-20 freewheel on Ebay
https://www.ebay.com/itm/SUNTOUR-FRE...0AAMXQ2UVQ5mE7
https://www.ebay.com/itm/SUNTOUR-FRE...0AAMXQ2UVQ5mE7
08-27-20 | 05:40 PM
#11
It's the little things
Joined: Jan 2016
Posts: 974
Likes: 510
From: Chicagoland
Bikes: Too many, yet not enough
I assume it is a supply and demand issue. Lack of demand means they no longer supply. If enough folks wanted them they'd be foolish not to continue offering them. Has anyone contacted them to inquire if they have any old stock? Sometimes manufacturers hold onto some stock in the event they have to replace due to warranty claims and such.
08-28-20 | 06:17 AM
#12
Senior Member
Joined: Nov 2010
Posts: 3,503
Likes: 619
Bummer. Hope you're able to find one in the used market or maybe someone is sitting on some NOS. The trouble is in the hunt I suppose.
