Thread: Change large ring only on crank?
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Old 05-21-10 | 08:02 AM
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cyccommute
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Originally Posted by CACycling
26T jump may be more than your FD can handle. I believe triples have around a 22 tooth max. capacity.
I'm running a 46/34/20 on a touring bike with a Shimano Tiagra front derailer. No issues with shifting at all. I'm also running a 44/32/20 on a mountain bike and it shifts fine also with an XT front derailer. Both shift just as well as my commuter bike with a 48/36/26 crank using an Ultegra front derailer (which isn't nearly as good a triple derailer as the Tiagra).

I would caution Camillo to not use a 48 or 50 with a 32 middle however. It will shift fine but the jump between the chainrings would be very large and not that pleasant to ride.
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