2026 Trek Top Fuel 9.8 XT Di2 Gen 4 Carbon Trail Mountain Bike
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Product Description
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-speed drivetrain, this bike offers clean, precise electronic shifting in a package that balances cross-country speed with genuine trail capability.
Technical Specifications
| Frame & Chassis | |
|---|---|
| Frame Material | OCLV Mountain Carbon |
| Frame Design | Gen 4, Internal Storage, Mino 4 Link, OCLV Next Rocker Link, ABP, UDH, Boost148 |
| Wheel Size | 29" (Size S: 27.5") |
| Weight | 13.68 kg / 30.66 lbs (Size M) |
| Suspension | |
| Fork | RockShox Pike Select+, DebonAir spring, Charger 3.1 RC2 damper, 130 mm travel |
| Rear Shock | RockShox Deluxe Ultimate RCT, 185 mm x 50 mm, 120 mm travel |
| Drivetrain (Wireless Electronic) | |
| Rear Derailleur | Shimano XT M8250 Di2, long cage, 12-speed |
| Shifters | Shimano XT M8250 Di2, 12-speed wireless |
| Crankset | Shimano XT 8200, 30T, 170 mm length |
| Cassette | Shimano XT M8200, 10-51, 12-speed |
| Chain | Shimano XT M8100, 12-speed |
| Bottom Bracket | Shimano BB-MT501 BSA threaded |
| Brakes & Cockpit | |
| Brakeset | Shimano XT M8200 4-piston hydraulic disc |
| Rotors | Shimano RT86, 6-bolt, 180 mm |
| Handlebars | Bontrager Line Pro, OCLV Carbon, 35 mm, 780 mm width |
| Stem | Bontrager Line Pro, 35 mm, Blendr compatible, 35 mm length |
| Seatpost | Bontrager Line Dropper, 34.9 mm (S:100mm, M/ML:170mm, L/XL:200mm) |
| Wheels & Tires | |
| Wheels | Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108 |
| Front Tire | Bontrager Montrose RSL XT, 29x2.40" (Size S: Gunnison 27.5x2.40") |
| Rear Tire | Bontrager Montrose RSL XT, 29x2.40" (Size S: Gunnison 27.5x2.40") |
Key Features
- OCLV Mountain Carbon: Keeps weight to an absolute minimum while providing the stiffness required for technical trail lines.
- Mino 4 Link: A new 4-way adjustment system that allows you to independently tweak geometry and suspension leverage rates.
- Wireless Di2 Precision: The Shimano XT Di2 system provides ultra-crisp, programmable shifting that remains consistent even under heavy pedaling loads.
- RockShox Charger 3.1: The updated Pike Select+ fork offers superior high-speed tracking and mid-stroke support for a poppy, playful feel.
- Improved BITS Storage: Integrated frame storage with a refined bag system makes it easier to carry tubes, tools, and mid-ride nutrition.
Size Guide
| Size | Rider Height (cm) | Rider Height (ft/in) | Inseam (cm) | Inseam (in) |
|---|---|---|---|---|
| S | 155 - 165 cm | 5'1" - 5'5" | 74 - 78 cm | 29" - 31" |
| M | 165 - 176 cm | 5'5" - 5'9" | 79 - 83 cm | 31" - 33" |
| M/L | 173 - 180 cm | 5'8" - 5'11" | 81 - 86 cm | 32" - 34" |
| L | 177 - 188 cm | 5'10" - 6'2" | 84 - 89 cm | 33" - 35" |
| XL | 188 - 195 cm | 6'2" - 6'5" | 89 - 91 cm | 35" - 36" |
| 2XL | 195 - 203 cm | 6'5" - 6'8" | 91 - 97 cm | 36" - 38" |
Ordering & Products
```Are the products sold by Runcycles genuine?
Runcycles offers new bicycle products, components, accessories, and related products from established brands. Product information, specifications, and package contents are provided on the individual product page. Customers are encouraged to review the product details carefully before placing an order.
How do I place an order?
Select the product you would like to purchase, choose any available options, add the item to your cart, and proceed through checkout. Please make sure your shipping address, contact information, and order details are correct before completing payment.
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Shipping & Delivery
```Do you ship internationally?
Yes. Runcycles serves international customers and offers worldwide shipping options. Availability and shipping costs may vary depending on the selected shipping service.
How long does shipping take?
Delivery time depends on the selected shipping service. Estimated delivery time information will be provided during the ordering process, if available.
Will I receive a tracking number?
Yes. When tracking is available for your shipment, tracking information will be provided after the order has been dispatched.
Payment
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Available payment methods are displayed during checkout. Depending on your location and order, payment options may include PayPal, major credit or debit cards, and international bank transfer.
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Returns & Refunds
```Can I return an item?
Returns are subject to the Runcycles return policy and the eligibility requirements applicable to the purchased product. Please review the return conditions before sending any item back.
What should I do if my order arrives damaged?
Please contact Runcycles as soon as possible and provide clear photographs or video showing the condition of the package and product. Our support team will review the issue and provide instructions for the next step.
Warranty
```Do products include a warranty?
Warranty coverage depends on the manufacturer and the specific product. Where available, warranty information is displayed on the relevant product page or provided with the product.
How do I make a warranty claim?
Contact Runcycles with your order information and details of the issue. Depending on the product and manufacturer, additional photographs, serial numbers, or other documentation may be required.
Product Information
```Where can I find the product specifications?
Product specifications are displayed on each individual product page. Please review the specifications, compatibility information, dimensions, included components, and other product details before ordering.
Are product images exactly the same as the item I will receive?
Product images are provided for identification and illustration. Product appearance, packaging, graphics, or included accessories may vary by model, production batch, or manufacturer. Please refer to the written specifications and package contents for the most accurate product information.
Customer Support
```How can I contact Runcycles?
For order assistance, product questions, or other inquiries, please contact our customer support team.
Email: order@runcycles.com
How quickly will customer support respond?
We aim to respond to customer inquiries as quickly as possible during business hours. Response times may vary depending on the nature and complexity of the request.
