Trek Top Fuel 9.8 GX AXS Gen 4 – Carbon Trail Bike 2025

Description

Wireless Precision Meets Carbon Speed: Trek Top Fuel 9.8 GX AXS Gen 4 (2025)

The Trek Top Fuel 9.8 GX AXS Gen 4 is engineered for the rider who wants a fast, light, and technologically advanced mountain bike. Built with Trek’s premier OCLV Mountain Carbon, the Gen 4 frame is optimized for both uphill efficiency and downhill stability. With 120mm of rear travel and a 130mm RockShox Pike Select+ fork, this 29er offers a refined ride that handles technical singletrack with surgical precision.

The standout feature of this build is the SRAM GX Eagle AXS wireless drivetrain. By eliminating shift cables, the GX AXS system provides instantaneous, crisp gear changes at the touch of a button, even under the heaviest climbing loads. The performance is further boosted by Bontrager Line Elite 30 Carbon wheels, which feature a Rapid Drive 108 hub for nearly instant engagement, making this high-performance carbon MTB feel incredibly snappy out of every corner.

Gen 4 Capability & Integrated Storage

The Top Fuel 9.8 GX AXS utilizes Trek’s Active Braking Pivot (ABP) to keep your suspension active and plush while you’re braking, ensuring maximum tire contact on technical descents. The updated Gen 4 chassis features 4-position Mino Link adjustability, allowing you to fine-tune your head angle or bottom bracket height. Additionally, the internal frame storage allows you to carry your flat kit and essentials inside the down tube, keeping your cockpit clean and your back pack-free.

• OCLV Mountain Carbon Frame: Ultralight and stiff construction with updated Gen 4 trail geometry.
• SRAM GX Eagle AXS Drivetrain: Fully wireless 1×12 shifting for a clean cockpit and precise gear changes.
• RockShox Pike Select+ Fork: 130mm of supportive travel with the highly adjustable Charger 3 damper.
• Bontrager Carbon Wheels: Line Elite 30 OCLV rims offer high-strength and low rotational weight.
• Mino Link Geometry: Adjustable flip-chip to customize the bike’s handling for your terrain.
• Internal Frame Storage: Secure integrated compartment for tools, tubes, and snacks.