Trek Fuel EX: suspension setup & specs
The Trek Fuel EX is a trail bike with 150 mm of fork travel and 145 mm at the rear. This page lists the 10 current builds with fork, shock and shock size and gives matching starting values for SAG and tyre pressure.
Calculate the setup for your Trek Fuel EX →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, weight and price according to the manufacturer. Wheel size: 29.
| Build | Fork | Shock | Shock size | Rear travel | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|
| 5 Gen 7 | RockShox Recon Silver RL (150 mm) | RockShox Deluxe Select | – | 145 mm | – | €2,499 | Setup → |
| 8 Gen 7 | FOX 36 Rhythm (150 mm) | FOX Float X Performance | – | 145 mm | – | €3,499 | Setup → |
| 9 Eagle 90 Gen 7 | RockShox Lyrik Ultimate (150 mm) | RockShox Deluxe Ultimate RC2T | – | 145 mm | – | €5,499 | Setup → |
| 9 XT Gen 7 | FOX 36 Factory (150 mm) | FOX Float X Factory | – | 145 mm | – | €5,499 | Setup → |
| 9 XT Di2 Gen 7 | FOX 36 Factory (150 mm) | FOX Float X Factory | – | 145 mm | – | €5,949 | Setup → |
| 9 X0 AXS Gen 7 | RockShox Lyrik Ultimate (150 mm) | RockShox Deluxe Ultimate RC2T | – | 145 mm | – | €6,499 | Setup → |
| 9.8 Eagle 90 Gen 7 | RockShox Lyrik Ultimate (150 mm) | RockShox Deluxe Ultimate RC2T | – | 145 mm | – | €6,499 | Setup → |
| 9.8 XT Gen 7 | FOX 36 Factory (150 mm) | FOX Float X Factory | – | 145 mm | – | €6,499 | Setup → |
| 9.8 XT Di2 Gen 7 | FOX 36 Factory (150 mm) | FOX Float X Factory | – | 145 mm | – | €6,999 | Setup → |
| 9.9 X0 AXS Gen 7 | RockShox Lyrik Ultimate (150 mm) | RockShox Deluxe Ultimate RC2T | – | 145 mm | – | €8,499 | Setup → |
How it compares
With 150 mm at the fork, the Trek Fuel EX sits above average: across the 44 bikes in the “trail bike” category in our database, the median is 140 mm. The rear offers 145 mm, 5 mm less than the front. Within Trek’s mountain bikes, it sits between the Trek Top Fuel and the Trek Fuel MX on travel. Depending on the build, the frame is aluminium or carbon.
Prices for the Trek Fuel EX start at €2,499 (5 Gen 7), below the category median of €3,000. The top build, 9.9 X0 AXS Gen 7, costs €8,499. Depending on the build, fork and shock come from FOX and RockShox. In total, 4 different forks are used, from the RockShox Recon Silver RL to the FOX 36 Factory.
Setup notes for this spec
- Fork (RockShox Recon Silver RL): air goes in through the valve on top of the left leg. After every change, compress the fork firmly a few times before measuring SAG.
- Rebound: turn the red FOX and RockShox adjuster fully closed first and count clicks from there – that way you can note settings and restore them later.
- Shock (RockShox Deluxe Select): get on the bike in your normal riding position, step off carefully and read the O-ring. Always cycle the shock a few times after pumping.
Target SAG for the Trek Fuel EX
Instead of percentages, this table gives SAG directly in millimetres, measurable with the O-ring on the stanchion and on the shock shaft. Change the pressure step by step until you reach the value; if Trek gives its own target SAG, use that.
150 mm fork (all builds)
| Riding style | Fork SAG |
|---|---|
| XC / touring | 17 % = 26 mm |
| Trail | 20 % = 30 mm |
| Enduro / rough | 22 % = 33 mm |
| Bike park | 20 % = 30 mm |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
For 2.40″ wide tyres, tubeless with a trail casing. With an inner tube about 0.2 bar (2.9 psi) more, with an insert about 0.1 bar (1.5 psi) less.
| Ready-to-ride weight | Front | Rear |
|---|---|---|
| 60 kg | 1.43 bar (21 psi) | 1.63 bar (24 psi) |
| 70 kg | 1.55 bar (22 psi) | 1.75 bar (25 psi) |
| 80 kg | 1.67 bar (24 psi) | 1.87 bar (27 psi) |
| 90 kg | 1.79 bar (26 psi) | 1.99 bar (29 psi) |
| 100 kg | 1.91 bar (28 psi) | 2.11 bar (31 psi) |
| 110 kg | 2.03 bar (29 psi) | 2.23 bar (32 psi) |
| 120 kg | 2.15 bar (31 psi) | 2.35 bar (34 psi) |
Air pressure in the fork and shock
You will find a suitable starting pressure on the sticker on the fork stanchion (or on the shock) or in the suspension manufacturers’ setup charts. Our calculator gives you a starting value including rebound for your weight and riding style. What matters afterwards is the measured SAG from the table above.
Sources
- Fuel EX 5 Gen 7
- Fuel EX 8 Gen 7
- Fuel EX 9 Eagle 90 Gen 7
- Fuel EX 9 XT Gen 7
- Fuel EX 9 XT Di2 Gen 7
- Fuel EX 9 X0 AXS Gen 7
- Fuel EX 9.8 Eagle 90 Gen 7
- Fuel EX 9.8 XT Gen 7
- Fuel EX 9.8 XT Di2 Gen 7
- Fuel EX 9.9 X0 AXS Gen 7