2026 Trek Top Fuel 9.9 XTR Di2 Gen 4 Mountain Bike
Features
- Premium OCLV Mountain Carbon Frame
Built with Trek’s highest-grade carbon for maximum stiffness, lightweight construction, and optimal handling on fast XC courses and technical downcountry trails. - 120mm Efficient Downcountry Suspension
A balanced 120mm front and rear suspension platform enhances pedaling efficiency while delivering capable performance on rough terrain and descents. - Shimano XTR Di2 Electronic Drivetrain
The newest generation XTR Di2 provides ultra-fast electronic shifting, pinpoint precision, and improved chain management for race-level performance. - Fox Factory Suspension Setup
A Fox 34 Step-Cast Factory fork paired with a Fox Float Factory rear shock delivers lightweight control with premium Kashima-coated stanchions. - Updated XC/Downcountry Geometry
Longer reach, slacker head angle, and steeper seat tube provide stability at high speeds and superior climbing efficiency. - Integrated Frame Storage
Trek’s Internal Storage system offers convenient space for tools, snacks, and ride essentials without extra bags. - Carbon Wheelset for Elite Performance
Ultra-light Bontrager Kovee XXX or RSL carbon wheels offer rapid acceleration, efficient rolling, and excellent strength for XC racing. - Clean, Fully Internal Cable Routing
A sleek aesthetic with improved cable protection and noise reduction.
Specifications
| Frame |
Trek Top Fuel 9.9 Gen 4 OCLV Mountain Carbon 120mm rear travel Internal frame storage Internal cable routing UDH-compatible |
|---|---|
| Fork |
Fox 34 Step-Cast Factory Travel: 120mm FIT4 or GRIP2 damper 15x110 mm Boost Kashima coating |
| Rear Shock |
Fox Float Factory 190x45 mm Kashima-coated Lightweight XC performance |
| Groupset | Shimano XTR Di2 12-speed Electronic |
| Rear Derailleur |
Shimano XTR Di2 Wireless electronic shifting Enhanced chain stability |
| Cassette |
Shimano XTR M9101 12-speed 10–51T wide-range gearing |
| Crankset |
Shimano XTR FC-M9120 32T or 34T chainring (varies by size) Hollowtech II carbon-reinforced arms |
| Chain | Shimano XTR M9100 Series |
| Brakes |
Shimano XTR M9120 4-piston hydraulic disc brakes Race-ready stopping performance |
| Rotors |
Shimano XTR Ice-Tech Front: 180 mm Rear: 160 mm |
| Front Wheel |
Bontrager Kovee RSL or XXX Carbon 29" Tubeless Ready Ultra-light XC optimized |
| Rear Wheel |
Bontrager Kovee RSL or XXX Carbon RapidDrive hub engagement 29" Tubeless Ready |
| Tyres |
Maxxis Rekon Race 29 x 2.35" EXO Tubeless Ready |
| Handlebar |
Bontrager RSL Integrated Carbon Bar/Stem Width: 760 mm Lightweight one-piece cockpit |
| Stem | Integrated with RSL carbon cockpit (one-piece) |
| Saddle |
Bontrager Montrose Pro Carbon rails Lightweight race saddle |
| Seatpost |
Fox Transfer Factory Dropper Post Kashima coating Travel varies by frame size |
| Accessories |
Tubeless valves Internal storage bag User manual Pedals not included |
2026 Trek Top Fuel 9.9 XTR Di2 Gen 4 Mountain Bike
- Product Code: TRK10010VTR
2026 Trek Top Fuel 9.9 XTR Di2 Gen 4 Mountain Bike
Features
- Premium OCLV Mountain Carbon Frame
Built with Trek’s highest-grade carbon for maximum stiffness, lightweight construction, and optimal handling on fast XC courses and technical downcountry trails. - 120mm Efficient Downcountry Suspension
A balanced 120mm front and rear suspension platform enhances pedaling efficiency while delivering capable performance on rough terrain and descents. - Shimano XTR Di2 Electronic Drivetrain
The newest generation XTR Di2 provides ultra-fast electronic shifting, pinpoint precision, and improved chain management for race-level performance. - Fox Factory Suspension Setup
A Fox 34 Step-Cast Factory fork paired with a Fox Float Factory rear shock delivers lightweight control with premium Kashima-coated stanchions. - Updated XC/Downcountry Geometry
Longer reach, slacker head angle, and steeper seat tube provide stability at high speeds and superior climbing efficiency. - Integrated Frame Storage
Trek’s Internal Storage system offers convenient space for tools, snacks, and ride essentials without extra bags. - Carbon Wheelset for Elite Performance
Ultra-light Bontrager Kovee XXX or RSL carbon wheels offer rapid acceleration, efficient rolling, and excellent strength for XC racing. - Clean, Fully Internal Cable Routing
A sleek aesthetic with improved cable protection and noise reduction.
Specifications
| Frame |
Trek Top Fuel 9.9 Gen 4 OCLV Mountain Carbon 120mm rear travel Internal frame storage Internal cable routing UDH-compatible |
|---|---|
| Fork |
Fox 34 Step-Cast Factory Travel: 120mm FIT4 or GRIP2 damper 15x110 mm Boost Kashima coating |
| Rear Shock |
Fox Float Factory 190x45 mm Kashima-coated Lightweight XC performance |
| Groupset | Shimano XTR Di2 12-speed Electronic |
| Rear Derailleur |
Shimano XTR Di2 Wireless electronic shifting Enhanced chain stability |
| Cassette |
Shimano XTR M9101 12-speed 10–51T wide-range gearing |
| Crankset |
Shimano XTR FC-M9120 32T or 34T chainring (varies by size) Hollowtech II carbon-reinforced arms |
| Chain | Shimano XTR M9100 Series |
| Brakes |
Shimano XTR M9120 4-piston hydraulic disc brakes Race-ready stopping performance |
| Rotors |
Shimano XTR Ice-Tech Front: 180 mm Rear: 160 mm |
| Front Wheel |
Bontrager Kovee RSL or XXX Carbon 29" Tubeless Ready Ultra-light XC optimized |
| Rear Wheel |
Bontrager Kovee RSL or XXX Carbon RapidDrive hub engagement 29" Tubeless Ready |
| Tyres |
Maxxis Rekon Race 29 x 2.35" EXO Tubeless Ready |
| Handlebar |
Bontrager RSL Integrated Carbon Bar/Stem Width: 760 mm Lightweight one-piece cockpit |
| Stem | Integrated with RSL carbon cockpit (one-piece) |
| Saddle |
Bontrager Montrose Pro Carbon rails Lightweight race saddle |
| Seatpost |
Fox Transfer Factory Dropper Post Kashima coating Travel varies by frame size |
| Accessories |
Tubeless valves Internal storage bag User manual Pedals not included |
- Brand: Trek
- Availability: In Stock
USD 4,800.00
Tags: Trek Mountain Bike