The heart of the AXS ecosystem is lighter, more efficient, and more capable than ever. Covering cassette ranges from 10-28T up to 10-36T, this wireless wonder has larger pulleys to increase drivetrain efficiency, and an Orbit fluid damper to keep everything in place over the rough stuff. One derailleur ready for 1x or 2x, on road or off.
AXS enabled for easy setup, personalization, and reliability
16 g lighter than previous generation
Larger X-SYNC pulleys for increased efficiency
Battery not included
SRAM Model ID: RD-RED-E-E1
Attributes
Max Front Difference
13T
Maximum Cog
36T
Minimum Cog
10T
Speed
12
Mount
Standard
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Specs
Size
Metric
Imperial
This is a size chart.
Geo
Metric
Imperial
Geometry of this bike.
Reach
Horizontal measurement taken from the middle of the bottom backet to the middle of the headtube.
Stack
Vertical measurement taken from the middle of the bottom bracket to the middle of the headtube.
Effective Top Tube
Horizontal measurement taken from the middle of the seatube to the middle of the headtube.
Actual Top Tube
True length of the top tube taken from the seatube along the toptup to the headtube.
Standover Height
Vertical measurement taken from the ground to the the middle of toptube.
Seat Tube Angle
Angle of the seatube.
Seat Tube Length
Lenght of the seat tube taken from the bottom bracket to the top of the seat tube (the measure is taken alongside the seat tube)
Headtube Angle
Angle of the headtube.
Headtube
Vertical lenght of the headtube.
Chainstay
Horizontal measurement taken from rear axle to the bottom bracket.
Wheelbase
Horizontal measurement between the two wheel axles.
BB Height
Vertical measurement taken from the ground to the bottom bracket (Never taken at sag).
BB Drop
Vertical measurement between the height of the axles and the height of the bottom bracket.
