Product description
- "Absolute dead-center of the current gravel consensus" - Velo
- 55mm tire clearance
- The adventurer's dream mount
- Built-in power meter and downtube storage
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
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
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
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.
- Branta C45 Gravel carbon wheelset
- Shimano GRX 717 Di2 groupset
- Branta alloy crankset with integrated power meter and Apple Find My anti-theft technology
- In-frame storage and accessory mounting points on frame and fork
Specifications
| Weight | |
|---|---|
| Year Model | 2026 |
| Model | GT8 |
| Frame Size | XS - 4'10" - 5'2" | S - 5'2" - 5'6" | M - 5'6" - 5'9" | L - 5'9" - 6'0" | XL - 6'0" - 6'3" | XXL - 6'3" - 6'7" |
| Frame Material | Carbon |
| Frame | XDS Carbon Frame, Toray T-800 |
| Color | Afterburner Black | Slipstream |
| Fork | XDS Carbon Fork |
| Fork Material | Toray T-800 |
| Suspension Capable | No |
| Headset | XDS |
| Seatpost | XDS Carbon |
| Dropper Post Compatible | Compatible |
| Stem | Branta Carbon Stem |
| Grips/Bar Tape | |
| Saddle | Fizik Terra Argo X7 |
| Handlebar | Branta Gravel Carbon Handlebar |
| Front Derailleur | Compatible |
| Rear Derailleur | Shimano GRX RD-RX717 Di2 |
| Cassette | Shimano CS-M6100-12, 10-51T |
| Chain | Shimano CN-M6100 |
| Crankset | Branta Alloy Power Meter Crankset, 40T, Narrow-wide Teeth, 24mm Steel Spindle |
| Bottom Bracket | T47 24mm |
| Shifter | Shimano GRX ST-RX717 Di2 |
| Brake Calipers | Shimano GRX BR-RX715 |
| Rotors | Shimano SM-CL700, F:160mm R:160mm |
| Wheel Size Options | 700c |
| Max Tire Clearance | 55c |
| Front Wheel | Branta C45 Gravel Carbon, Stainless Steel Spokes |
| Rear Wheel | Branta C45 Gravel Carbon, Stainless Steel Spokes |
| Front Tire | Continental Terra Trail 700x45C |
| Rear Tire | Continental Terra Trail 700x45C |
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