Technical FAQ: Dura-Ace 7900 crankset with 9-speed drivetrain.

  • By Lennard Zinn
  • Published Sep. 9, 2009
  • Updated Aug. 29, 2010 at 10:36 PM EDT

Dear Lennard,
I am setting up a new ’cross bike and would like to use a 7900 Dura Ace crankset with a Dura Ace 9-speed drivetrain. Will this work? If not can chainring spacers help? What size would I need?

Dear Rick,
I haven’t tried that combo. Sorry. But why would you want 39-53 chainrings on a ’cross bike?

FILED UNDER: Cyclocross / Technical FAQ TAGS: / / / / / /

Lennard Zinn

Lennard Zinn

Our longtime technical writer joined VeloNews in 1987. He is also a framebuilder, a former U.S. National Team rider, and author of many bicycle books, including Zinn and the Art of Mountain Bike Maintenance and Zinn and the Art of Road Bike Maintenance, as well as Zinn and the Art of Triathlon Bikes and Zinn's Cycling Primer: Maintenance Tips and Skill Building for Cyclists. He holds a Bachelor’s degree in physics from Colorado College. Readers can send brief technical questions to Ask LZ.

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