Rear derailleur upgrade
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Your derailleur will likely go 25k miles. You know if you replace the Ultegra, you'll crash on the first day with your new DA. That's just the way it is.
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The pulleys on 10spd DA are better than the pulleys on Ultegra 10spd. I don't know about 9spd. The 10speed ultegra use plain journal bearings (not ball) on one pulley.
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Originally Posted by bsyptak
Your derailleur will likely go 25k miles. You know if you replace the Ultegra, you'll crash on the first day with your new DA. That's just the way it is.

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Originally Posted by texascyclist
The pulleys on 10spd DA are better than the pulleys on Ultegra 10spd. I don't know about 9spd. The 10speed ultegra use plain journal bearings (not ball) on one pulley.
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