cog size
08-06-08 | 09:20 AM
#1
Thread Starter
Senior Member
Joined: Jul 2008
Posts: 277
Likes: 0
From: NEW JERSEY!
Bikes: 1985 cannondale commuter, 2004 gary fisher ziggurat, 04 serrotta legend ti, 2008 fit chase dehart
cog size
what's the smallest available cog size.. i've seen 13... anyone make a 12?
i know i'm wear out chains faster but that's why god created wipperman chains
i know i'm wear out chains faster but that's why god created wipperman chains
08-06-08 | 09:44 AM
#2
asleep at the wheel
Joined: Aug 2004
Posts: 976
Likes: 0
From: Chicago
Bikes: Custom Richie Ditta Track Bike, Eddie Merckx Corsa, Marioni Custom Pista, Dolan Cyclocross
I know Suntour made a 12t cog. However the downsize of really small cogs like this is that you often need a special lockring.
See https://www.benscycle.net/index.php?m...2d4cec7cf98fa6
See https://www.benscycle.net/index.php?m...2d4cec7cf98fa6
08-06-08 | 10:13 AM
#4
Thread Starter
Senior Member
Joined: Jul 2008
Posts: 277
Likes: 0
From: NEW JERSEY!
Bikes: 1985 cannondale commuter, 2004 gary fisher ziggurat, 04 serrotta legend ti, 2008 fit chase dehart
weight savings isnt entirely negligible... smaller cog in the back means smaller chainring in the front to acheive a similar gear ratio.
for instance, with a 700 x 25c tire and 170mm cranks...
44t chainring paired with a 16t cog with produce 72.5 gear inches
a 33t chainring with a 12t cog will produce the exact same ratio
not only are you saving weight on your chainrings and cogs but you ar also eliminating 13 links from your chain.
and small gearing looks cool... duh
for instance, with a 700 x 25c tire and 170mm cranks...
44t chainring paired with a 16t cog with produce 72.5 gear inches
a 33t chainring with a 12t cog will produce the exact same ratio
not only are you saving weight on your chainrings and cogs but you ar also eliminating 13 links from your chain.
and small gearing looks cool... duh
08-06-08 | 10:36 AM
#5
Senior Member
Joined: Mar 2007
Posts: 908
Likes: 0
From: West Dorset, UK
Bikes: 1983 Dawes Galaxy, 2006 Raleigh Airlite, 1982 Sun Solo (fixed)
__________________
A group for all Dawes Galaxy owners to give and recieve information about them
https://flickr.com/groups/dawes_galaxy/
i jam my thumbs up and back into the tubes. this way i can point my fingers straight out in front to split the wind and attain an even more aero profile, and the usual fixed gear - zen - connectedness feeling through the drivetrain is multiplied ten fold because my thumbs become one with the tubing.
https://flickr.com/groups/dawes_galaxy/
