Ameer Randolph
The Trek Fuel EX is a full-suspension trail bike with front travel ranging from 140mm to 160mm. The bike is highly adaptable and feels comfortable on a wide variety of terrains. The suspension setup can be adjusted by following a few simple steps. The Trek Suspension Calculator helps riders find the ideal sag measurement and recommended rebound setting. The front suspension forks and rear shocks require simple adjustments to work best for a particular rider.
| Characteristics | Values |
|---|---|
| Travel | 140mm rear/160mm fork |
| Wheel size | 29" front/27.5" rear |
| Frame construction | Carbon fiber |
| Head angle | 64° |
| Chainstays | 438mm |
| Gen 5 travel | 130/140mm |
| Gen 6 travel | 140/150mm |
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What You'll Learn
Trek Fuel EX Gen 6 front shock PSI adjustment
The Trek Fuel EX Gen 6 is a full-suspension trail bike with 140mm rear and 150mm front travel. It is a highly adaptable bike with a comfortable ride in a wide variety of terrains. The front suspension forks and rear shocks require simple adjustments to work best for a particular rider.
To adjust the PSI for the front shock of your Trek Fuel EX Gen 6, you will need to first set up your sag. Put on your full riding gear, including shoes, a helmet, and a pack, to ensure accuracy. Set the compression damping to "open" by turning the blue knob on your fork and the blue lever on your shock counter-clockwise. Use the Trek Suspension Calculator to find a good starting PSI for your MTB and your weight, and use a shock pump to adjust the shock's PSI accordingly.
With the shock pump attached, push down on the saddle to engage the shock. Check the gauge and adjust the PSI again if necessary. Mount the bike with a friend holding you up, or lean against a wall. Move the rubber o-rings on the fork and shock so they are against the seals. Carefully dismount without compressing the suspension further. Measure the distance in millimetres between the o-rings and the seals. This is your sag measurement.
If your measured sag is not within 2-4mm of the recommended sag, use your shock pump to adjust the PSI. If the o-ring travelled too far, add air. If it did not move far enough, use the bleed valve to remove air. Use the Trek Suspension Calculator to find the recommended rebound setting.
Remember that individual preference and ride style are important factors in finding the suspension setting that works for you. Experiment with different levels of sag and rebound until you find the combination that suits your riding style.
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Trek Fuel EX Gen 6 front shock compatibility
The Trek Fuel EX Gen 6 is a full-suspension trail bike designed for a wide variety of terrain. It features a longer-travel suspension that enables riders to navigate bigger terrain and faster speeds. The front suspension fork has a travel of 150mm, while the rear shock has a travel of 140mm.
Regarding front shock compatibility, the Trek Fuel EX Gen 6 offers broader shock compatibility, accommodating various aftermarket shocks, including coil shocks. The specific shocks that are compatible with the Trek Fuel EX Gen 6 depend on the frame and model year.
For example, the RockShox Super Deluxe Thru-Shaft shock is designed exclusively for Trek Bikes and fits a range of Trek frames. However, other shocks may require additional bolts or adjustments for compatibility. The Fox X2 shock, in theory, fits the Trek Fuel EX Gen 6, but it is too close to the frame, and any flex may cause the shock to collide with the frame.
It is important to note that shocks produced specifically for Trek frames, such as the Thru-Shaft shock, may be more challenging to service or repair due to limited spare parts availability. Therefore, when considering front shock compatibility for the Trek Fuel EX Gen 6, it is essential to refer to compatibility tables and consider the specific frame and model year of your bike.
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Trek Fuel EX front suspension fork setup
The Trek Fuel EX is a full-suspension trail bike designed for a wide variety of terrain. The front suspension travel of the Fuel EX varies between 140mm and 150mm, depending on the generation of the bike. The front suspension forks require adjustments to suit the rider's preferences and riding style.
To set up the front suspension fork on the Trek Fuel EX, follow these steps:
- Put on your full riding gear, including shoes, a helmet, and a pack, to ensure accurate weight distribution.
- Set the compression damping to "open" by turning the blue knob on the fork counter-clockwise.
- Use the Trek Suspension Calculator to find the recommended starting PSI based on your MTB model and weight. Adjust the PSI using the shock pump.
- With the shock pump attached, push down on the saddle to engage the shock and check the gauge. Adjust the PSI if necessary.
- Mount the bike, either with a friend holding it or by leaning against a wall. Move the rubber o-rings on the fork and shock against the seals.
- Dismount carefully without compressing the suspension further. Lean the bike to one side to facilitate dismounting.
- Measure the distance in millimetres between the o-rings and the seals to obtain your sag measurement.
- Utilise the Trek Suspension Calculator to determine your ideal sag measurement. If the measured sag deviates from the recommended range, adjust the PSI accordingly.
- Refer to the Trek Suspension Calculator again to find the suggested rebound setting.
After a few rides, re-evaluate your setup by measuring the distance between the o-rings and the shock body or fork lowers. Adjust the PSI or experiment with different levels of sag and rebound to find the optimal settings that align with your riding style and preferences.
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Trek Fuel EX front suspension fork PSI adjustment
The Trek Fuel EX is a full-suspension trail bike with 140mm rear and 150mm front travel. It is highly adaptable and can handle a wide variety of terrains. The front suspension forks require simple adjustments to work best for a particular rider.
To adjust the PSI on the front suspension fork, you can follow these steps:
- Set up your sag wearing full riding gear, including shoes, a helmet, and a pack, to ensure accuracy.
- Set the compression damping to "open" by turning the blue knob on your fork all the way counter-clockwise, and the blue lever on your shock counter-clockwise.
- Use the Trek Suspension Calculator to find a good starting PSI for your MTB and your weight.
- With the shock pump attached, push down on the saddle to engage the shock. Check the gauge and adjust the PSI if necessary.
- Mount the bike with a friend holding you up or lean against a wall. Move the rubber o-rings on the fork and shock so they are against the seals.
- Carefully dismount without compressing the suspension further.
- Measure the distance in millimeters between the o-rings and the seals. This is your sag measurement.
- Use the Trek Suspension Calculator to find your ideal sag measurement. If your measured sag is not within 2-4mm of the recommended sag, adjust the PSI using the shock pump. Add air if the o-ring traveled too far, and use the bleed valve to remove air if it did not move far enough.
- Use the Trek Suspension Calculator to find the recommended rebound setting.
After a few rides, re-check your setup by measuring the distance between the o-rings and the shock body or fork lowers. If you are not achieving full travel, you may need to lower your PSI. If the o-ring is traveling too far, or sliding off the shock shaft, you may need to increase your PSI. Remember that individual preference and riding style play a crucial role in determining the suspension setting that works best for you. Experiment with different levels of sag and rebound to find the combination that suits your riding style.
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Trek Fuel EX front suspension fork quirks
The Trek Fuel EX is a full-suspension trail bike that can handle a wide variety of terrain. The front suspension forks and rear shocks require simple adjustments to work best for a particular rider. The suspension setup is a straightforward process that can be completed in a few minutes by following the steps outlined in Trek's suspension setup guide.
The first step is to set up the sag, which should be done while wearing full riding gear, including shoes, a helmet, and a pack, to ensure accuracy. The compression damping should then be set to "open" by turning the blue knob on the fork and the blue lever on the shock counter-clockwise. The Trek Suspension Calculator can be used to find a suitable starting PSI based on the rider's weight, and a shock pump can be used to adjust the shock's PSI accordingly.
Some users have reported that the suggested settings are a little stiff, and adjustments may be needed to achieve the desired level of comfort and performance. For example, if the shock or fork feels like it is packing down or not fully recovering from successive hits, the rebound can be sped up by turning the red knob 1-3 clicks counter-clockwise. After a few rides, it is recommended to re-check the setup by measuring the distance between the o-rings and the shock body or fork lowers. If the o-ring is travelling too far or sliding off the shock shaft, the PSI may need to be increased, and vice versa.
It is important to note that individual preferences and riding styles play a significant role in finding the optimal suspension settings. Users are encouraged to experiment with different levels of sag and rebound to find the combination that best suits their riding style and the terrain they frequently encounter.
Additionally, some users have opted to upgrade their front suspension forks to achieve better performance and support. For example, some riders have chosen to replace the stock RockShox Reckon Gold RL 32mm 140mm travel fork with options offering 150mm travel, such as the RockShox Yari RC DebonAir Boost or Fox 34 Rhythm. These upgrades can provide improved tuneability and performance, but it is important to consider the geometry changes that may result from modifying the fork travel.
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Frequently asked questions
The Trek Fuel EX Gen 5 has 130mm rear and 140mm front travel.
The Trek Fuel EX Gen 6 has 140mm rear and 150mm front travel.
The Trek Fuel Top Fuel is a shorter-travel bike with 140mm rear and 160mm fork travel.
