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The GT8 is a versatile gravel bike designed for everything from recreational riding and mixed-surface adventures to gravel racing and short bikepacking trips.

Its combination of stability, tire clearance, storage, and cargo mounts makes it suitable for both new and experienced gravel riders. It is a strong option for anyone seeking one bike that can handle pavement, gravel roads, trails, racing, and loaded adventures.

Yes. The GT8 arrives partially assembled and can be completed using the written assembly guide.

Because correct installation and torque are essential for carbon components, we recommend professional assembly if you are unfamiliar with installing wheels, handlebars, seatposts, or pedals. A qualified mechanic should also perform a complete safety inspection before the first ride.

The GT8 has a maximum total load capacity of 242 lbs (110 kg). This includes the rider and everything carried on the bike, such as clothing, water, tools, bags, racks, and cargo.

Bikepacking equipment can add significant weight, so riders should calculate the complete loaded weight before setting out. Exceeding the limit may affect handling, braking, and component durability.

Yes. The GT8 is available as a frameset for riders who want to create a custom build.

Other major components—including the cockpit, Branta power-meter crankset, and wheels—are also available for purchase. Pricing and availability may vary, so contact an authorized X‑LAB dealer for assistance.

Yes. The GT8 has an integrated storage compartment in the downtube. A storage bag designed to fit this compartment is included with the bike.

The compartment is suitable for compact essentials such as a tube, tire levers, inflator, and small tools. Items should be secured inside the supplied bag to prevent rattling or damage while riding.

Yes. In addition to the standard bottle mounts on the downtube and seat tube, the GT8 includes mounting points on the top tube, underneath the downtube, and on both fork legs.

These mounts provide flexibility for bottles, a top-tube bag, cargo cages, and other compatible bikepacking accessories. Always follow the accessory and mounting-point load limits, and confirm that installed equipment does not interfere with steering, braking, or the wheels.

Most local bicycle shops can perform routine GT8 maintenance, including brake adjustments, drivetrain service, tubeless setup, wheel service, and safety inspections.

For warranty claims, proprietary replacement parts, cockpit changes, power-meter service, or major customization, we recommend working with an authorized X‑LAB dealer.

Yes. The integrated power meter can transmit live power data to most compatible bike computers and fitness devices through ANT+.

It can also connect through Bluetooth to the X‑LAB Bikes app for supported functions such as battery status, calibration, device information, and firmware updates. Live power data cannot currently be transmitted by Bluetooth directly to third-party mobile apps.

Yes. The GT8 frame is compatible with most wired, wireless, and mechanical groupsets from SRAM and other major drivetrain manufacturers.

The GT8 comes with a 1x drivetrain but supports both 1x and 2x configurations. A conversion may require compatible shifters, derailleurs, brakes, cassette, chain, crankset, freehub body, bottom bracket, wiring, and related hardware.

The GT8 supports tires up to 55 mm wide, providing flexibility for fast gravel tires, high-volume adventure tires, and more technical terrain.

Actual tire width can vary depending on the tire model, rim width, tread pattern, and inflation pressure. Always verify adequate clearance around the frame and fork, particularly in muddy conditions where debris can accumulate.

Yes. The GT8 uses a Universal Derailleur Hanger, commonly known as UDH.

This standardized design makes replacement hangers easier to source and helps provide consistent derailleur positioning. Following an impact, the hanger and derailleur alignment should be inspected before riding.

Yes. The GT8’s two-piece cockpit uses a round 31.8 mm handlebar clamping area and is compatible with appropriately sized standard bike-computer clamp mounts.

Before installing a computer, light, or camera, confirm the mount’s diameter and load limit. Position accessories so they do not interfere with cables, controls, or handlebar bags.

For a 1x drivetrain, the GT8 can accommodate up to a 44T Shimano chainring or a 42T SRAM chainring. With a 2x drivetrain, it supports chainring combinations up to 48–31T.

Compatibility depends on the selected drivetrain and components. Frame clearance, chain line, chain length, derailleur capacity, and gearing compatibility should be verified before installation.

Yes. X‑LAB offers three stem options and three handlebar options for the GT8, allowing riders to adjust reach and width for their fit and riding preferences.

Availability may vary. Because cockpit replacement can involve internal brake-hose routing and hydraulic brake service, we recommend professional selection and installation.

Yes. Multiple crank lengths are available for the Branta alloy power-meter crankset through authorized X‑LAB dealers, subject to availability.

Crank length can affect pedaling mechanics, ground clearance, saddle height, and overall fit. The rider’s position should be checked and the saddle height adjusted after installation.

Yes. The GT8 uses a standard round 27.2 mm seatpost and supports internal dropper-post cable routing.

Confirm that the selected dropper has the correct diameter, travel, insertion length, and routing configuration. Frame size and saddle height will determine how much travel can be accommodated.

Installing a suspension fork is not recommended. A suspension fork can alter the GT8’s geometry, steering response, handling, and load distribution.

It may also introduce compatibility or warranty concerns. Riders seeking additional comfort should first consider higher-volume tires and appropriate tire pressures.

Yes. Both the rims and original tires supplied with the GT8 are tubeless-ready, and tubeless rim tape is already installed.

Tubeless valves and sealant must be purchased separately. After conversion, verify that the tires are properly seated and remain within the pressure limits specified by both the tire and wheel manufacturers.