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SKU: XLGR-GT8MSL-XS

GT8 GRX

$3,999.00 RRP

  • "Absolute dead-center of the current gravel consensus" - Velo
  • 55mm tire clearance
  • The adventurer's dream mount
  • Built-in power meter and downtube storage

Colour

Slipstream
Frame Size

GT8 GRX

$3,999.00
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Slipstream
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X-LAB GT8 X-LAB GT8

X-LAB GT8

The GT8 is X-LAB’s first gravel platform, built for riders who see every road as an invitation.

Designed for stability, control, and long-distance comfort, the GT8 transitions effortlessly from pavement to dirt, city streets to open trails.

With confident handling and durable carbon construction, it’s a gravel bike that encourages exploration without limits.

Wherever the road disappears, the GT8 keeps going.

Where Gravel Gets Interesting
Where Gravel Gets Interesting

Where Gravel Gets Interesting

The GT8 is made for the rides that don’t follow a route. It was born to master uneven terrain, unknown turns, and long mixed-surface days where stability, speed, and confidence all matter at once.

Clearance That Changes the Ride

Clearance That Changes the Ride

With up to 55mm tire clearance, the GT8 opens the door to bigger comfort, more grip, and more capability wrapped in colorways that look as fierce as they feel.

The Seat Stay Advantage

The Seat Stay Advantage

A unique seat stay design balances strength, compliance, and precision handling. The GT8 is built to maximize ride performance while staying true to modern gravel standards and race-ready intent.

The Branta Advantage is Exclusive to X-LAB The Branta Advantage is Exclusive to X-LAB

The Branta Advantage is Exclusive to X-LAB

See Our In-House Components

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Highlights

Key Features

Branta C45 Gravel carbon wheelset

Branta C45 Gravel carbon wheelset

Shimano GRX groupset

Shimano GRX groupset

Full Carbon Frame + Carbon Integrated Cockpit

Full Carbon Frame + Carbon Integrated Cockpit

Carbon Seatpost

Carbon Seatpost

In-frame storage and accessory mounting points on frame and fork

In-frame storage and accessory mounting points on frame and fork

Technical Specifications

Frame

XDS T800 Carbon Frame

Fork

XDS Carbon Fork, 100x12mm Thru-axle

Gear Shifter

Shimano GRX ST-RX610

Front Derailleur

Shimano GRX FD-RX820

Rear Derailleur

Shimano GRX RD-RX820

Crankset

Shimano FC-RX610-2, 46-30T

Cassette

Shimano CS-HG710-12, 11-36T

Chain

Shimano CN-M7100

Bottom Bracket

T47 24mm

Tyre

Continental Terra Trail 700x45C

Bike Wheelset

Branta C45 Gravel Carbon Wheelset, Steel Spokes

Seat Post

XDS Carbon 27.2mm Seatpost

Saddle

Fizik Terra Argo X7

Handlebar

Branta Gravel Carbon Handlebar

Stem

Branta Carbon Stem

Bike Brakes

Shimano GRX BR-RX410

*Continuous Product Improvement

Innovation never stands still. As part of our commitment to building the best possible bicycles, X-LAB reserves the right to update specifications, components, colors, and other product details at any time without notice. We make every effort to keep our published specifications current, but minor variations may occur between production batches. Please contact your local X-LAB dealer or Customer Support if you would like to confirm the latest specifications before purchase.

Geometry & Dimensions

FAQ

General
GT8 is designed to be a phenomenal do-it-all gravel bike. It can handle adventure rides, gravel racing, and short bikepacking trips. GT8 is a great option for any type of new or experienced gravel rider.
Yes, GT8 is easy to assemble. You can refer to the written assembly guide or our assembly video to help guide you through the process. If you have any questions or doubts about assembling GT8 yourself, we recommend having it professionally assembled at your local bike shop.
GT8 has a weight limit of 242lbs (110kg), which includes the rider and any gear or cargo.
Yes, the GT8 frameset and other major components (including cockpit, crank, and wheels) are available for purchase.
Yes, GT8 has an integrated storage compartment on the downtube of the frame. A storage bag that’s designed to be used in this frame storage compartment is also provided with GT8.
In addition to the standard water bottle mounting locations on the downtube and seat tube, GT8 also has mounting locations on the top tube, underside of the downtube, and both fork legs.
Any local bike shop will be able to provide general service for your GT8. For any component customization or warranty issues we recommend going to an X-LAB dealer to receive the best expert guidance and support.
Technical
Yes, the integrated power meter can connect to most major bike computers and fitness devices via ANT+. This allows live power data to be shared directly to your device. Live power data can also be shared via Bluetooth to the X-LAB Bikes app on your mobile device. At this time, live data can’t be shared to third party mobile apps via Bluetooth.
Yes, the GT8 frame is compatible with most wired, wireless, or mechanical groupsets from all major drivetrain brands. GT8 comes with a 1x drivetrain, but is compatible with both 1x and 2x drivetrain options.
GT8 has clearance for up to 55c tires.
Yes, GT8 uses a UDH.
Yes, the 2-piece cockpit on GT8 is compatible with standard bike computer clamp mounts designed for round 31.8mm handlebars.
GT8 can fit up to 44T Shimano or 42T SRAM 1x front chainrings. For 2x, GT8 can fit up to 48-31T front chainrings.
Yes, X-LAB has 3 different stem options and 3 different handlebar options for GT8.
Yes, X-LAB offers numerous crank length options for the Branta alloy power meter crankset.
Yes, a standard dropper post can be installed and internally routed on GT8. GT8 has a standard 27.2mm round seat tube.
Due to the impacts on geometry and handling, we don’t recommend installing a suspension fork on GT8.
The Branta power meter crank is dual-sided, meaning it measures power from both left and right legs separately.
Yes - the rims and tires on GT8 are tubeless ready and tubeless rim tape is already installed. Tubeless valves and sealant must be purchased separately.

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