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Old 06-23-09, 08:53 AM
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Originally Posted by djohannsen View Post
Would this make more of the cassette usable on a given chain ring? I hate with the triple that cross gears (ie, 52/23'ish or 30/11'ish) are unusable, necessitating a shift to a different chainring (with the resulting loss of momemtum as I soft pedal for a revolution or two). One other reason to change is that the outer chainring on the triple is only a 52. I really wish that it were a 53 or 54 for a bit more punch on longer descents.

I like the idea of using the 11-21 or 11-23 for you Dave. You never want to use the 30/smallest cog or 52/largest cog anyways, it really stretches the chain. Use this gear chart and you can see how it works for you. Put in any rings you want .

From a 52 to a 54 is only 5 gear inches Dave, it doesn't seem worth the expense to me, and barely noticeable. You could learn to pedal faster and smoother instead. If you need a 39t ring or whatever, remember you do not need to buy a Shimano ring, Vuelta is just one brand that's good and about $25.

Shifting is a part of life on the bike. I know crossovers are not great, but unless you go to a half-step plus granny type gearing, lots of cross overs are inevitable.
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