Author Aura 2022 geometry

Manufacturer trims

• Aura Shimano 105 Di2

  MSRP not listed

  Component	Brand	Model	Size
  Shifters	Shimano	ST-R7120 105 HRD	2×12
  Front derailleur	Shimano	FD-R7100 105	braze-on
  Rear derailleur	Shimano	RD-R7100 105	12-speed
  Crankset	Shimano	FC-R7100 105	50/34 S170mm M172.5mm L175mm XL175mm
  Cassette	Shimano	CS-R7100 105	11-34, 12-speed
  Chain	Shimano	CN-M7100 SLX	12-speed
  Power meter	—	None	—
  Brakes	Shimano	BR-R7170 105

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• 

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Size guidance

Stack and reach describe the frame's cockpit envelope better than traditional seat-tube sizing. If you know your preferred stack/reach from a bike that already fits, search within a few millimeters first, then check head angle and chainstay for handling feel. See the glossary for stack, reach, and HTA.