2026 Trek Top Fuel 9.8 XT Di2 Gen 4 Carbon Trail Mountain The Top Fuel 9.8 XT Di2 Gen 4 is a lightweight carbon trail bike built to rip up climbs and stay playful on descents. It delivers the confidence you need through roots and rocks thanks to its refined 130mm/120mm RockShox suspension package. Equipped with the wireless Shimano XT Di2 12-s..

2026 Trek Top Fuel 9.9 XTR Di2 Gen 4 Carbon SLR Cross Country/Trail Mountain Bike The Top Fuel 9.9 XTR Di2 Gen 4 is a high-performance carbon trail bike designed for riders who demand agility on climbs and playfulness on descents. Built with a lightweight OCLV Mountain Carbon frame, it features a versatile 130mm/120mm suspension setup and the ..