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2019 Author

Aura XR4

An aluminum frame gravel bike with mid-range components and mechanical disc brakes.
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Weight22.9 lbs  
FrameAluminum
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 10
GroupsetTiagra
BrakesMechanical Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Aura XR4
Other Gravel bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

39 mph

Aura XR4

36 mph

Similar Bikes

Highest gear

(descending)

Sizing
50cm

5'2" – 5'7"

52cm

5'6" – 5'11"

54cm

5'9" – 6'3"

56cm

6'1" – 6'5"

58cm

6'3" – 6'9"

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

triple butted alloy 6061

ColorBlack / Red

Fork

AUTHOR carbon legs, alloy steerer 1.5" tapered

Stem

AUTHOR

Handlebar

PROMAX 420 / 440 / 460 mm

Saddle

AUTHOR Aura CR

Seatpost

AUTHOR (27.2)

TypeRigid

Groupset
Rear Derailleur

SHIMANO Tiagra

Front Derailleur

SHIMANO Tiagra

Crank

SHIMANO Tiagra Compact 50-34 teeth 170 / 172.5 / 175 mm cranks

Shifters

SHIMANO Tiagra (20)

Cassette

SHIMANO HG500-10 11-34 (10)

Chain

KMC X10

Brakes

REVER MCX2 disc mechanical (160 mm rotors)

TypeMechanical Disc

Wheels
Rims

JALCO CR25D 32 holes

Spokes

black stainless steel 2.0 mm

Front Hub

QUANDO Road Disc 12 x 100 mm thru front axle 32 holes

Rear Hub

QUANDO Road Disc 12 x 100 mm thru front axle 32 holes

Tires

RITCHEY Cross Shield kevlar 700 x 35c

Rider Notes
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First added November 2

Last updated November 8

Not listed for 1,298 days