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Old 07-26-12, 08:56 AM
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Barrettscv 
Have bike, will travel
 
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Join Date: Feb 2006
Location: Lake Geneva, WI
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Bikes: Ridley Helium SLX, Canyon Endurance SL, De Rosa Professional, Eddy Merckx Corsa Extra, Schwinn Paramount (1 painted, 1 chrome), Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Raleigh Roker, Pedal Force CG2 and CX2

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Here are some graphs to illustrate a few alternatives;

I use a 50, 39 & 26t Shimano road triple, a 50 & 34 compact is on the right. The 26t is a Salsa chainring, a 30t is standard;



Below is a 50 & 34 compact with a 11-32 cassette v the common 50, 39 & 30t Shimano road triple. Notice the large gaps between the ratios on the compact. The range is about the same.

The 39t chainring can be used without concern of cross-chaining and provides a great set of useful ratios. I use the 39t 60% of the time, it provides close ratios from 10 to 25 mph.

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Last edited by Barrettscv; 07-26-12 at 09:03 AM.
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