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DriveTrain: 9 speed 11 tooth cogs (many choices)(4 posts)

DriveTrain: 9 speed 11 tooth cogs (many choices)JKGray
Aug 4, 2003 12:43 PM
I was just wondering about 11 tooth cogs. Many to choose from. Does anybody know the difference between the following. FW8363 for xtr- xt, FW8361 for xtr-xt, FW4701 for Ultegra, FW4650 for Dura Ace. I would like to buy the most durable one. I am currently running an XT cassette and assume any of the above would work fine.
Thanks!
re: DriveTrain: 9 speed 11 tooth cogs (many choices)divve
Aug 5, 2003 8:26 PM
I don't recognize those part numbers. However, the different types are usually related to the number of teeth on the next cog, i.e., an 11 tooth cog that mounts next to 12 tooth will have a different spacer or perhaps even ramping compared to one that will sit next to a 13 tooth.
Can you actually spin an 11 (or a 12)?Kerry Irons
Aug 6, 2003 4:18 PM
Compact drive systems (small chain rings) result in slight weight savings and much accelerated chain, cog, and chainring wear. Unless you're super sprinter, with a conventional drive train, the 11 or 12 is not of much value to most riders. Once you spin out a 13 on a downhill, you'll be just as fast in a tight tuck as you will pedaling.
Can you actually spin an 11 (or a 12)?JKGray
Aug 7, 2003 10:46 AM
Yes, we actually can. Running a 54-11 is just big enough. When standing on the tandem we can spin it out. 12 is no good.