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2025 Superior

XR 6.3 GR

An aluminum frame gravel bike with mid-range components and shimano grx 400 hydraulic disc brakes.

Weight24.6 lbs  
FrameAluminum
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain1 × 10
GroupsetGRX 600, GRX 400
BrakesShimano GRX 400 Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
XR 6.3 GR
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)

31 mph

XR 6.3 GR

36 mph

Similar Bikes

Highest gear

(descending)

Sizing
XS

5'2" – 5'9"

SM

5'6" – 5'11"

MD

5'8" – 6'1"

LG

5'10" – 6'3"

XL

6'0" – 6'7"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
Gran Fondo Magazine
Superior XR-GF in Review – Race-Gravel-Bike-Test 2025

Jul 2025 · Calvin Zajac

The Superior XR 9.7 GF is built to handle anything – but does that translate to top performance in our 2025 gravel-racer test?

Highs

  • DPrecise handling

  • High frame compliance

  • Stylish paint job

Lows

  • Endurance wheels are too narrow for gravel

  • Cockpit is too wide

Read Review

Bikerumor
Superior XR GR is Czech Bikemaker's Fastest, Lightest, Most Aero Gravel Bike Ever

Aug 2024 · Cory Benson

Superior will debut all-new faster, lighter XR GR aero gravel bikes this fall at Gravel Worlds. Get a sneak peek at what’s coming…

Read Review

Geometry
Specs
Build
Frame

Alu X6 Ultralite X-Road Race , Road Advanced Geometry, Smooth Welding, Disc Brake Flat mount, BB BSA 68mm, Integrated Cable Routing, Full Carbon front fork; mudguadrs ready

BB Standard: BSA, 68mm, Threaded

Color: Matte Green Grey / Black

Fork

X-ROAD Carbon Fork

Bottom Bracket

SHIMANO BB-RS501, BSA, shell 68mm

Headset

ACROS AIX-643, ICR, OD56, IS52/28.6 - 40IPS

Stem

ONE Race ICR, Alloy, 31,8mm, -7°

Handlebar

ONE Alloy, X-Race Aero, 31.8mm, Reach 70mm, Drop 127mm, Flare 2°, Backsweep 6°

Saddle

Selle Royal SRX, 148mm

Seatpost

ONE Race, Alloy, 27.2mm

Type: Rigid

Groupset
Rear Derailleur

SHIMANO GRX RD-RX400, Shadow Plus Design

Crank

SHIMANO GRX FC-RX600, 40T

Shifters

SHIMANO GRX RX400, 10-speed

Cassette

SHIMANO CS-HG500, 10-speed, 11-36T

Chain

SHIMANO CN-LG500

Brakes

SHIMANO GRX RX400, hydraulic disc brake

Type: Shimano GRX 400 Hydraulic Disc

Wheels
Rims

STARS J22GT, Disc, 28H

Spokes

SAPIM Race, Stainless Black

Front Hub

SHIMANO HB-RS470, 28H, CL, 12x100mm, THRU Type AXLE

Rear Hub

SHIMANO FH-RS470, 28H, CL, 12x142mm, THRU Type AXLE

Tires

Schwalbe G-One Allround, RaceGuard, TL-Easy, 40-622, ADDIX

Rider Notes
Riders Also Viewed

First added March 15

Last updated November 30

Not listed for 189 days