Trek Fuel LX 9.8 Eagle 90 Gen 7 Mountain Bike 2026 - Enduro Full Suspension MTB
The Fuel LX 9.8 Eagle 90 Gen 7 is built around a lightweight OCLV Mountain Carbon frame, it features adjustable geometry and Trek’s ABP suspension platform, giving you traction and control whether climbing or charging down rough descents. Internal storage and guided cable routing add practicality while keeping the bike’s lines sleek and clean.
Key Features:
- OCLV Mountain Carbon frame, adjustable geometry, internal storage
- Fox Factory 38 Float GRIP X2 fork, 170mm travel
- Fox DHX2 coil rear shock, 160mm travel
- SRAM Eagle 90 T-Type 12-speed drivetrain
- SRAM Maven Bronze 4-piston hydraulic disc brakes
- Bontrager Line Comp 30 tubeless-ready wheels with Maxxis tyres
- Bontrager Line dropper post with MaxFlow routing
- Available with 0%APR finance
Suspension duties are handled by a Fox Factory 38 GRIP X2 fork with 170mm of travel, paired with a Fox DHX2 coil shock delivering 160mm of supple rear travel. Together, they offer stability, precision and plush support across rock gardens, drops and steep chutes.
The drivetrain is powered by SRAM’s Eagle 90 T-Type 12-speed system, chosen for its fuss-free mechanical reliability and smooth shifting under load. Braking is equally impressive, with SRAM Maven Bronze 4-piston hydraulic disc brakes ensuring consistent stopping power with plenty of modulation.
The bike rolls on Bontrager Line Comp 30 tubeless-ready wheels, wrapped in a proven Maxxis Assegai and Minion DHR II tyre combo for maximum traction and confidence. A Bontrager Line dropper post and Verse Short Pro saddle round out the build, ensuring comfort and control across all types of terrain.
The Trek Fuel LX 9.8 Eagle 90 Gen 7 is a bike built for serious riders who want carbon performance, coil shock capability and reliable mechanical shifting, perfect for riders seeking a capable all-rounder for their most challenging trails.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | OCLV Mountain Carbon, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm |
| Fork | Fox Factory 38, Float EVOL air spring, GRIP X2 damper, 44 mm offset, Boost 110, 15 mm Kabolt X axle, 170 mm travel |
| Rear Shock | Fox DHX2, 205 mm x 65 mm |
| Stem | Bontrager Elite, 35 mm, 0-degree, 45 mm length |
| Bars | Race Face ERA, carbon, 35 mm, 27.5 mm rise, 800 mm width |
| Front Brake | SRAM Maven Bronze 4-piston hydraulic disc // SRAM Maven ive Bronze 4-piston hydraulic disc |
| Rear Brake | SRAM Maven Bronze 4-piston hydraulic disc // SRAM Maven ive Bronze 4-piston hydraulic disc |
| Rear Mech | SRAM Eagle 90, T-Type |
| Speed | 12 |
| Rims | Bontrager Line Comp 30, Tubeless Ready |
| Front Hub | 6-bolt, Boost110, 15 mm thru-axle |
| Rear Hub | Rapid Drive 108, 6-bolt, SRAM XD freehub, Boost148, 12 mm thru axle' |
| Front Tyre | Maxxis Assegai, tubeless-ready, 3C, EXO+ casing, MAXXGRIP, folding bead, 29x2.5'' // Maxxis Minion DHR II, tubeless-ready, 3C, EXO+ casing, MAXXTERRA, folding bead, 29x2.5'' |
| Rear Tyre | Maxxis Assegai, tubeless-ready, 3C, EXO+ casing, MAXXGRIP, folding bead, 29x2.5'' // Maxxis Minion DHR II, tubeless-ready, 3C, EXO+ casing, MAXXTERRA, folding bead, 29x2.5'' |
| Seat Post | Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9 mm |
| Saddle | Verse Short Pro, carbon rails, 145 mm width |
| Chainset | SRAM Eagle 90, DUB, 30T steel, T-Type, 55 mm chainline |
| Bottom Bracket | SRAM DUB MTB Wide, 73 m, BSA threaded |
| Chain | SRAM GX Eagle, T-Type, 12-speed |
| Cassette | SRAM Eagle XS-1275, T-Type, 10-52, 12-speed |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Trek Fuel LX 9.8 Eagle 90 Gen 7 Mountain Bike 2026 - Enduro Full Suspension MTB
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