Show your corncobs
11-27-23 | 01:36 PM
#26
Senior Member
Joined: Sep 2005
Posts: 3,005
Likes: 305
From: Hervey Bay, Qld, Australia.
Bikes: Colnago (82, 85, 89, 90, 91, 96, 03), 85 Cinelli, 90 Rossin, 83 Alan, 82 Bianchi, 78 Fountain, 2 x Pinarello, Malvern Star (37), Hillman (70's), 80's Beretto Lo-Pro Track, 80's Kenevans Lo-Pro, Columbus Max (95), DeGrandi (80's) Track.
Thanks for the education!You have a pretty impressive list of bikes and your Bob Jackson really caught my attention and the famous Tom Kellogg certainly stands out as well. Anything LeMond is something I would cherish as Greg was such a big influence in cycling. Best wishes.
Last edited by Gary Fountain; 11-27-23 at 01:41 PM.
11-27-23 | 04:03 PM
#28
Crawlin' up, flyin' down
Joined: Jan 2006
Posts: 6,765
Likes: 4,421
From: Democratic Peoples' Republic of Berkeley
Bikes: 1967 Paramount; 1982-ish Ron Cooper; 1978 Eisentraut "A"; two mid-1960s Cinelli Speciale Corsas; and others in various stages of non-rideability.
When it comes to corn cob freewheels, I harken to the wise words from John Madden: "I couldn't do that when I could do that."
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"I'm in shape -- round is a shape." Andy Rooney
"I'm in shape -- round is a shape." Andy Rooney
11-27-23 | 04:16 PM
#29
It's MY mountain
Joined: Sep 2006
Posts: 10,186
Likes: 4,255
From: Mt.Diablo
Bikes: Klein, Merckx, Trek
I had a Regina Oro 13-18 6v on my criterium sew-ups.
That's probably why I never won anything... needed a 12t.
Look at that - hardly bigger than the small flange hub.
That's probably why I never won anything... needed a 12t.
Look at that - hardly bigger than the small flange hub.
11-28-23 | 10:07 AM
#31
Full Member
Joined: May 2023
Posts: 367
Likes: 2,283
From: Big Sur California
Bikes: 1946 Holdsworth Cyclone, 1969 Cinelli SC, 1972 Raleigh Pro, 1973 Merz road bike, 1974 Alex Singer Sportif, 1974 Merz track bike, 1975 Teledyne Titan, 1976 Ritchey road bike, 1977 DiNucci built Merz track bike, 1977 (?) Exxon Graftek, many more!
The Regina Titanio "Super Star" freewheel must be one of the rarest. Regina offered the Titanio in two versions, this is the all titanium version. Even the body is Ti! The Campagnolo freewheel is pretty exotic, if not as rare as the Titanio. Jim Merz
11-29-23 | 08:29 PM
#32
Senior Member
Joined: Jul 2015
Posts: 1,814
Likes: 321
From: Seal Beach Ca. On the right , next to Long Beach
Bikes: 86' Centurion Ironman
12-01-23 | 03:31 AM
#34
Senior Member
Joined: Sep 2005
Posts: 3,005
Likes: 305
From: Hervey Bay, Qld, Australia.
Bikes: Colnago (82, 85, 89, 90, 91, 96, 03), 85 Cinelli, 90 Rossin, 83 Alan, 82 Bianchi, 78 Fountain, 2 x Pinarello, Malvern Star (37), Hillman (70's), 80's Beretto Lo-Pro Track, 80's Kenevans Lo-Pro, Columbus Max (95), DeGrandi (80's) Track.
Great set-up. Love the chain. The freewheel and chain combo is top self. It must be on a well loved bike?
12-01-23 | 04:40 AM
#35
Banned.
Joined: Oct 2016
Posts: 854
Likes: 334
From: Cambridge UK
Bikes: 1903 24 spd Sunbeam, 1927 Humber, 3 1930 Raleighs, 2 1940s Sunbeams, 2 1940s Raleighs, Rudge, 1950s Robin Hood, 1958 Claud Butler, 2 1973 Colnago Supers, Eddie Merckx, 2 1980 Holdsworth, EG Bates funny TT bike, another 6 or so 1990s bikes
1903 Corn
This is a 14,15,17 corn cob on a AX IGH Four speed with a Resilion 'Red Star' shifter on my 1903 2 speed Sunbeam.
12-01-23 | 07:34 AM
#36
Freewheel Medic
Joined: Oct 2005
Posts: 13,572
Likes: 3,315
From: An Island on the Coast of GA!
Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)
__________________
Bob
Enjoying the GA coast all year long!
Thanks for visiting my website: www.freewheelspa.com
Bob
Enjoying the GA coast all year long!
Thanks for visiting my website: www.freewheelspa.com
12-01-23 | 05:57 PM
#38
Senior Member
Joined: Sep 2017
Posts: 2,393
Likes: 1,280
From: Hotel CA / DFW
Bikes: 80s Colnago Super/NMx, 50th Daccordi, Pinarello's, Guerciotti's, Masi NS, 90s DB/GT Mtn Bikes, 90s Colnago Master, 96 Serotta Colorado TG, 95/05 Colnago C40/C50, 06 LS TI, 08 Lemond Filmore FG SS, 12 Cervelo R3, 20/15 Surly Stragler & Steamroller
Bayliss Wiley Road Bike Freewheel HUB 40h 3Speed Prewar Tour Bicycle
NOTE: Not mine but wanted to add to all the nice eye candy
NOTE: Not mine but wanted to add to all the nice eye candy
12-01-23 | 10:52 PM
#39
Insane Bicycle Mechanic
Joined: Mar 2008
Posts: 10,165
Likes: 1,132
From: other Vancouver
If Im reading this right, it was possible to build an 11-16t corncob on the old Dura-Ace EX/AX cassette hubs. My knees hurt just typing that.
https://www.sheldonbrown.com/shimano1982/pages/21.html
https://www.sheldonbrown.com/shimano1982/pages/21.html
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Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
12-02-23 | 07:15 AM
#40
Senior Member
Joined: Sep 2017
Posts: 2,393
Likes: 1,280
From: Hotel CA / DFW
Bikes: 80s Colnago Super/NMx, 50th Daccordi, Pinarello's, Guerciotti's, Masi NS, 90s DB/GT Mtn Bikes, 90s Colnago Master, 96 Serotta Colorado TG, 95/05 Colnago C40/C50, 06 LS TI, 08 Lemond Filmore FG SS, 12 Cervelo R3, 20/15 Surly Stragler & Steamroller
If Im reading this right, it was possible to build an 11-16t corncob on the old Dura-Ace EX/AX cassette hubs. My knees hurt just typing that.
https://www.sheldonbrown.com/shimano1982/pages/21.html
https://www.sheldonbrown.com/shimano1982/pages/21.html
12-02-23 | 07:19 AM
#41
Freewheel Medic
Joined: Oct 2005
Posts: 13,572
Likes: 3,315
From: An Island on the Coast of GA!
Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)
If Im reading this right, it was possible to build an 11-16t corncob on the old Dura-Ace EX/AX cassette hubs. My knees hurt just typing that.
https://www.sheldonbrown.com/shimano1982/pages/21.html
https://www.sheldonbrown.com/shimano1982/pages/21.html
While I haven't tried, my guess is that by using either 9 or 10-speed HG spacers, an 11-18, 8-speed, could also be assembled on these 126mm spaced hubs.
__________________
Bob
Enjoying the GA coast all year long!
Thanks for visiting my website: www.freewheelspa.com
Bob
Enjoying the GA coast all year long!
Thanks for visiting my website: www.freewheelspa.com
12-02-23 | 09:34 AM
#42
I rode a bunch of races on one of those many years ago. Trained and rode the hilly New England races on the touring version, 13-19. Rode gearbasher's cluster for the Stowe race (except my freewheel only had half the cogs).
And for years, I rode triples (including the first 15 years on the Mooney) with 52 (or 53) -42-28 X 13-19 5-speed. First year of racing, I just screwed in the inside FD for the open races.
Edit: My current 9-speed has the Campy cassette. Lots of gear choices, I often run it 12, 14-19, 21, 23 so an almost straight block. (12, 14 because I hardly need the big gears except Portland and Oregon have quite a few big descents and I like the big gears to quiet the bike.)
And for years, I rode triples (including the first 15 years on the Mooney) with 52 (or 53) -42-28 X 13-19 5-speed. First year of racing, I just screwed in the inside FD for the open races.
Edit: My current 9-speed has the Campy cassette. Lots of gear choices, I often run it 12, 14-19, 21, 23 so an almost straight block. (12, 14 because I hardly need the big gears except Portland and Oregon have quite a few big descents and I like the big gears to quiet the bike.)
28 in red, 42 in black, 53 in blue.
That's reasonable shift spacing in the range, but steep hills must have been a very low cadence with just two chainrings. Low gear with the 42 at 35 rpm is still 6 mph.
What about sprinting at the end of a race? 53-13 at 120 rpm is about 38 mph.
~~~~~~~~~~~~~~~~~~~
When I was riding fast-for-me club rides, I needed close shifts at 18-25 mph to try to hang on. And there were hills too.
So I made a Shimano 11 speed combo cassette from a Junior Racing 14-28 and an 11-32. The two carriers for the 5 largest cogs are from the 11-32, shown in red.
14-15-16-17-18-19-22 25 28 32 with a 34/50 front.
It worked great at those higher speeds, but shifts at lower speeds in the 34 ring at 10 mph, etc, were too close together. I'd shift 2 or 3 cogs at a time then. And I'd be coasting downhill at speeds higher than about 28-29 mph.
Last edited by rm -rf; 12-02-23 at 09:40 AM.
12-17-23 | 12:32 PM
#43
^ * * ^ * * ^
Joined: May 2014
Posts: 165
Likes: 301
From: FL USA
Bikes: 1977 Tom Kellogg Nr. 27 - 1984 Bob Jackson - 1987 Alpineer - 1999 Bianchi - 2002 LeMond Buenos Aries- 2007 Specialized Tarmac Pro - 2024 Gravity 29er 2-Speed Rigid MTB
True vintage corncob pic. Pic taken around 1979 of my Assenmacher. Keen-eyed viewers will note the tied&soldered spokes on the non-drive side, the drilled chain, the gold corncob, the Pino Morroni titanium skewers, and the gold-plated cable housing 
12-17-23 | 01:49 PM
#44
Senior Member
Joined: Oct 2008
Posts: 1,874
Likes: 358
From: Right where I'm supposed to be
Bikes: Franklin Frames Custom, Rivendell Bombadil
I know, forgive me. I do have a SunTour corn cob FW but no photo, but frankly when I heard show us your corn cobb, I thought of this water tower I grew up a few blocks from in Rochester, MN. It's at what was once Libby's produce processing plant, dating back to 1933 under the owners name of the time. The plant was recently torn down, so I read, but the wonderful tower remains. It's classic, it's vintage and it functions as intended.
01-11-24 | 11:23 PM
#46
Fast Old Guy
Joined: Feb 2006
Posts: 672
Likes: 804
From: Central California
Cyclo Pans 13-18 6 speed. This was my go-to freewheel that was always on my race wheels. A road race on Saturday would usually mean a 13-21, maybe a 24 if it was really hard. Then spin off the smallest cogs and change to a straight block if there was a Sunday criterium.
Regina Extra 12-20 6 speed
Sun Tour Pro Compe 5 speed 15-19 from my old commuter bike
