Anonymous
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Been gradually updating my bike. Have mix of ultegra 6600 and 105.
Which make more sense for crank upgrade ulterga 6700 or da 7800. |
justinadmin
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The 7800 is about 50g lighter than the new Ultegra. 6700 cranks got a little trickle down technology from the 7900 group in a hollow outer ring and some updated tooth profiles.
If it were me, I'd probably go with the Dura Ace.
JL |
