Dura Ace 7970 or Ultegra R8000 - which one to choose??

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James_York

Regular
Location
York
Hi all
I have a choice to make - 10spd Dura Ace 7970 Di2 or 11spd Ultegra R8000 mechanical - which one to choose, and why??
 

fossyant

Ride It Like You Stole It!
Location
South Manchester
Older DA DI2 parts aren't easy to find.
 
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